12156204 has 24 divisors (see below), whose sum is σ = 28725760. Its totient is φ = 4000464.

The previous prime is 12156203. The next prime is 12156211. The reversal of 12156204 is 40265121.

It is not an unprimeable number, because it can be changed into a prime (12156203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5464 + ... + 7359.

Almost surely, 2^12156204 is an apocalyptic number.

It is an amenable number.

12156204 is an abundant number, since it is smaller than the sum of its proper divisors (16569556).

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

12156204 is a wasteful number, since it uses less digits than its factorization.

12156204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12909 (or 12907 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 12156204 is about 3486.5748235195. The cubic root of 12156204 is about 229.9319521441.

The spelling of 12156204 in words is "twelve million, one hundred fifty-six thousand, two hundred four".