13157264 has 10 divisors (see below), whose sum is σ = 25492230. Its totient is φ = 6578624.

The previous prime is 13157251. The next prime is 13157267. The reversal of 13157264 is 46275131.

It can be written as a sum of positive squares in only one way, i.e., 10240000 + 2917264 = 3200^2 + 1708^2 .

It is a super-2 number, since 2×13157264² = 346227191931392, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13157267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 411149 + ... + 411180.

It is an arithmetic number, because the mean of its divisors is an integer number (2549223).

Almost surely, 2^13157264 is an apocalyptic number.

It is an amenable number.

13157264 is a deficient number, since it is larger than the sum of its proper divisors (12334966).

13157264 is an equidigital number, since it uses as much as digits as its factorization.

13157264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 822337 (or 822331 counting only the distinct ones).

The product of its digits is 5040, while the sum is 29.

The square root of 13157264 is about 3627.2943084343. The cubic root of 13157264 is about 236.0778255249.

The spelling of 13157264 in words is "thirteen million, one hundred fifty-seven thousand, two hundred sixty-four".