12156472 has 16 divisors (see below), whose sum is σ = 23016240. Its totient is φ = 6018816.

The previous prime is 12156467. The next prime is 12156497. The reversal of 12156472 is 27465121.

It is a super-2 number, since 2×12156472² = 295559622973568, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12156472.

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, 6553 + ... + 8200.

It is an arithmetic number, because the mean of its divisors is an integer number (1438515).

Almost surely, 2^12156472 is an apocalyptic number.

It is an amenable number.

12156472 is a deficient number, since it is larger than the sum of its proper divisors (10859768).

12156472 is a wasteful number, since it uses less digits than its factorization.

12156472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14862 (or 14858 counting only the distinct ones).

The product of its digits is 3360, while the sum is 28.

The square root of 12156472 is about 3486.6132564424. The cubic root of 12156472 is about 229.9336418522.

The spelling of 12156472 in words is "twelve million, one hundred fifty-six thousand, four hundred seventy-two".