156173228 has 12 divisors (see below), whose sum is σ = 274178520. Its totient is φ = 77836512.

The previous prime is 156173219. The next prime is 156173239. The reversal of 156173228 is 822371651.

It is a happy number.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

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, 61118 + ... + 63621.

It is an arithmetic number, because the mean of its divisors is an integer number (22848210).

Almost surely, 2^156173228 is an apocalyptic number.

It is an amenable number.

156173228 is a deficient number, since it is larger than the sum of its proper divisors (118005292).

156173228 is a wasteful number, since it uses less digits than its factorization.

156173228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125056 (or 125054 counting only the distinct ones).

The product of its digits is 20160, while the sum is 35.

The square root of 156173228 is about 12496.9287426951. The cubic root of 156173228 is about 538.5204445844.

The spelling of 156173228 in words is "one hundred fifty-six million, one hundred seventy-three thousand, two hundred twenty-eight".