156432256 has 32 divisors (see below), whose sum is σ = 317536200. Its totient is φ = 76737024.

The previous prime is 156432253. The next prime is 156432277. The reversal of 156432256 is 652234651.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156432253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4746 + ... + 18313.

Almost surely, 2^156432256 is an apocalyptic number.

156432256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

156432256 is an abundant number, since it is smaller than the sum of its proper divisors (161103944).

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

156432256 is an equidigital number, since it uses as much as digits as its factorization.

156432256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23126 (or 23114 counting only the distinct ones).

The product of its digits is 43200, while the sum is 34.

The square root of 156432256 is about 12507.2881153350. The cubic root of 156432256 is about 538.8180090824.

The spelling of 156432256 in words is "one hundred fifty-six million, four hundred thirty-two thousand, two hundred fifty-six".