12156272 has 20 divisors (see below), whose sum is σ = 24101880. Its totient is φ = 5936448.

The previous prime is 12156251. The next prime is 12156289. The reversal of 12156272 is 27265121.

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, 8147 + ... + 9522.

It is an arithmetic number, because the mean of its divisors is an integer number (1205094).

Almost surely, 2^12156272 is an apocalyptic number.

It is an amenable number.

12156272 is a deficient number, since it is larger than the sum of its proper divisors (11945608).

12156272 is a wasteful number, since it uses less digits than its factorization.

12156272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17720 (or 17714 counting only the distinct ones).

The product of its digits is 1680, while the sum is 26.

The square root of 12156272 is about 3486.5845751968. The cubic root of 12156272 is about 229.9323808783.

The spelling of 12156272 in words is "twelve million, one hundred fifty-six thousand, two hundred seventy-two".