155976 has 32 divisors (see below), whose sum is σ = 399840. Its totient is φ = 50688.

The previous prime is 155921. The next prime is 156007. The reversal of 155976 is 679551.

It is a nialpdrome in base 12.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 155976.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1560 + ... + 1656.

It is an arithmetic number, because the mean of its divisors is an integer number (12495).

2¹⁵⁵⁹⁷⁶ is an apocalyptic number.

It is an amenable number.

155976 is an abundant number, since it is smaller than the sum of its proper divisors (243864).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155976 is a wasteful number, since it uses less digits than its factorization.

155976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173 (or 169 counting only the distinct ones).

The product of its digits is 9450, while the sum is 33.

The square root of 155976 is about 394.9379698130. The cubic root of 155976 is about 53.8293653574.

The spelling of 155976 in words is "one hundred fifty-five thousand, nine hundred seventy-six".