It is a cyclic number.
It is a Curzon number.
It is a congruent number.
It is an unprimeable number.
2156165 is an apocalyptic number.
156165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
156165 is a wasteful number, since it uses less digits than its factorization.
156165 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 396.
The square root of 156165 is about 395.1771754543. The cubic root of 156165 is about 53.8510987086.
The spelling of 156165 in words is "one hundred fifty-six thousand, one hundred sixty-five".