156538828 has 12 divisors (see below), whose sum is σ = 285853680. Its totient is φ = 74866352.

The previous prime is 156538813. The next prime is 156538829. The reversal of 156538828 is 828835651.

156538828 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×156538828² = 49008809343227168, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is not an unprimeable number, because it can be changed into a prime (156538829) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 850663 + ... + 850846.

It is an arithmetic number, because the mean of its divisors is an integer number (23821140).

Almost surely, 2^156538828 is an apocalyptic number.

It is an amenable number.

156538828 is a deficient number, since it is larger than the sum of its proper divisors (129314852).

156538828 is a wasteful number, since it uses less digits than its factorization.

156538828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1701536 (or 1701534 counting only the distinct ones).

The product of its digits is 460800, while the sum is 46.

The square root of 156538828 is about 12511.5477859456. The cubic root of 156538828 is about 538.9403407957.

The spelling of 156538828 in words is "one hundred fifty-six million, five hundred thirty-eight thousand, eight hundred twenty-eight".