12157632 has 42 divisors (see below), whose sum is σ = 34849308. Its totient is φ = 4052352.

The previous prime is 12157627. The next prime is 12157633. The reversal of 12157632 is 23675121.

It is a happy number.

12157632 is a `hidden beast` number, since 1 + 21 + 5 + 7 + 632 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 12157596 and 12157605.

It is not an unprimeable number, because it can be changed into a prime (12157633) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9978 + ... + 11129.

Almost surely, 2^12157632 is an apocalyptic number.

12157632 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12157632 is an abundant number, since it is smaller than the sum of its proper divisors (22691676).

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

12157632 is a wasteful number, since it uses less digits than its factorization.

12157632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21125 (or 21112 counting only the distinct ones).

The product of its digits is 2520, while the sum is 27.

The square root of 12157632 is about 3486.7796030148. The cubic root of 12157632 is about 229.9409552279.

The spelling of 12157632 in words is "twelve million, one hundred fifty-seven thousand, six hundred thirty-two".