156439056 has 40 divisors (see below), whose sum is σ = 406491840. Its totient is φ = 51842176.

The previous prime is 156439043. The next prime is 156439061. The reversal of 156439056 is 650934651.

It is a super-2 number, since 2×156439056² = 48946356484342272, which contains 22 as substring.

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, 1116 + ... + 17723.

It is an arithmetic number, because the mean of its divisors is an integer number (10162296).

Almost surely, 2^156439056 is an apocalyptic number.

156439056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

156439056 is an abundant number, since it is smaller than the sum of its proper divisors (250052784).

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

156439056 is a wasteful number, since it uses less digits than its factorization.

156439056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19023 (or 19017 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 39.

The square root of 156439056 is about 12507.5599538839. The cubic root of 156439056 is about 538.8258163157.

The spelling of 156439056 in words is "one hundred fifty-six million, four hundred thirty-nine thousand, fifty-six".