The extremely high Isp (about a factor of 9 above what is achievable today) enables it to perform feats of derring-do beyond our current imaginings. Apart from that, it seems feasible.
As noted by others, the Isps cited suggest a nuclear engine of some sort.
The Isp is around nine times that of the Space Shuttle main engines (!)
It has SSTO capability beyond anything we could build today.
It could "go to earth orbit" from a standing start (with tanks partially filled).
On full tanks, it cannot quite lift from the earth's surface.
Even with tanks almost empty, it would be a sluggish climb to orbit for a terran launch.
But once in LEO its capabilities are astounding.
Mars surface to orbit would be 'easy'.
Converting N to kg with a factor of 10 ("naughty" but makes comparisons easier)
Main engine thrust is 24,000 kg.
Empty weight + all fuel brings thrust:mass to about 1:1 but the extraordinarily high Isp allow an earth LEO delta V on well less than "a full tank".
This table shows the delta V in km/s required to go from locations in the left-hand column to locations in the top row. From Wikipedia - Delta-V budget. If you launched from earth to LEO on just enough fuel to get you there and then "tanked up" in LEO you could 'wander around' the Earth-Lunar-Lagrange environments in astounding style.
It gets better!
You can do Mars return from LEO on Hohmann transfer orbits with ease.
And so probably greatly reduce Earth-Mars-Earth journey times with non-Hohmann trajectories.
It gets better still.
You can dive into the sun! - or sun graze and just start to get back.
With full tanks from LEO you can maybe manage Jupiter or Saturn return,
easily achieve Mercury, Venus or Mars return,
And make a one-way journey to anything past Saturn.