12156532 has 12 divisors (see below), whose sum is σ = 21303520. Its totient is φ = 6069816.

The previous prime is 12156527. The next prime is 12156553. The reversal of 12156532 is 23565121.

It is a junction number, because it is equal to n+sod(n) for n = 12156497 and 12156506.

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, 2023 + ... + 5329.

Almost surely, 2^12156532 is an apocalyptic number.

It is an amenable number.

12156532 is a deficient number, since it is larger than the sum of its proper divisors (9146988).

12156532 is a wasteful number, since it uses less digits than its factorization.

12156532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4230 (or 4228 counting only the distinct ones).

The product of its digits is 1800, while the sum is 25.

The square root of 12156532 is about 3486.6218607701. The cubic root of 12156532 is about 229.9340201417.

The spelling of 12156532 in words is "twelve million, one hundred fifty-six thousand, five hundred thirty-two".