12557136 has 40 divisors (see below), whose sum is σ = 32703264. Its totient is φ = 4151680.

The previous prime is 12557113. The next prime is 12557141. The reversal of 12557136 is 63175521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5290 + ... + 7286.

Almost surely, 2^12557136 is an apocalyptic number.

12557136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12557136 is an abundant number, since it is smaller than the sum of its proper divisors (20146128).

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

12557136 is a wasteful number, since it uses less digits than its factorization.

12557136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2139 (or 2133 counting only the distinct ones).

The product of its digits is 6300, while the sum is 30.

The square root of 12557136 is about 3543.6049441212. The cubic root of 12557136 is about 232.4325067126.

The spelling of 12557136 in words is "twelve million, five hundred fifty-seven thousand, one hundred thirty-six".