156980 has 24 divisors (see below), whose sum is σ = 338688. Its totient is φ = 61088.

The previous prime is 156979. The next prime is 157007. The reversal of 156980 is 89651.

It is an Ulam number.

It is a plaindrome in base 7.

It is a congruent number.

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, 857 + ... + 1023.

It is an arithmetic number, because the mean of its divisors is an integer number (14112).

2¹⁵⁶⁹⁸⁰ is an apocalyptic number.

156980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

156980 is an abundant number, since it is smaller than the sum of its proper divisors (181708).

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

156980 is a wasteful number, since it uses less digits than its factorization.

156980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223 (or 221 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 156980 is about 396.2070165961. The cubic root of 156980 is about 53.9446162847.

The spelling of 156980 in words is "one hundred fifty-six thousand, nine hundred eighty".