156187228 has 12 divisors (see below), whose sum is σ = 289405872. Its totient is φ = 73499840.

The previous prime is 156187147. The next prime is 156187271. The reversal of 156187228 is 822781651.

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, 1148368 + ... + 1148503.

It is an arithmetic number, because the mean of its divisors is an integer number (24117156).

Almost surely, 2^156187228 is an apocalyptic number.

It is an amenable number.

156187228 is a deficient number, since it is larger than the sum of its proper divisors (133218644).

156187228 is a wasteful number, since it uses less digits than its factorization.

156187228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2296892 (or 2296890 counting only the distinct ones).

The product of its digits is 53760, while the sum is 40.

The square root of 156187228 is about 12497.4888677686. The cubic root of 156187228 is about 538.5365358207.

The spelling of 156187228 in words is "one hundred fifty-six million, one hundred eighty-seven thousand, two hundred twenty-eight".