13157186 has 12 divisors (see below), whose sum is σ = 22958118. Its totient is φ = 5638752.

The previous prime is 13157171. The next prime is 13157191. The reversal of 13157186 is 68175131.

It can be written as a sum of positive squares in only one way, i.e., 13097161 + 60025 = 3619^2 + 245^2 .

It is a super-2 number, since 2×13157186² = 346223086877192, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 67031 + ... + 67226.

Almost surely, 2^13157186 is an apocalyptic number.

13157186 is a deficient number, since it is larger than the sum of its proper divisors (9800932).

13157186 is a wasteful number, since it uses less digits than its factorization.

13157186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134273 (or 134266 counting only the distinct ones).

The product of its digits is 5040, while the sum is 32.

The square root of 13157186 is about 3627.2835566027. The cubic root of 13157186 is about 236.0773590118.

The spelling of 13157186 in words is "thirteen million, one hundred fifty-seven thousand, one hundred eighty-six".