156021056 has 28 divisors (see below), whose sum is σ = 310359552. Its totient is φ = 77820288.

The previous prime is 156021049. The next prime is 156021077. The reversal of 156021056 is 650120651.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25601 + ... + 31103.

Almost surely, 2^156021056 is an apocalyptic number.

156021056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

156021056 is a deficient number, since it is larger than the sum of its proper divisors (154338496).

156021056 is an equidigital number, since it uses as much as digits as its factorization.

156021056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5958 (or 5948 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 156021056 is about 12490.8388829574. The cubic root of 156021056 is about 538.3454799748.

The spelling of 156021056 in words is "one hundred fifty-six million, twenty-one thousand, fifty-six".