13157292 has 24 divisors (see below), whose sum is σ = 31091200. Its totient is φ = 4329936.

The previous prime is 13157267. The next prime is 13157293. The reversal of 13157292 is 29275131.

It is a super-2 number, since 2×13157292² = 346228665546528, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13157293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5992 + ... + 7887.

Almost surely, 2^13157292 is an apocalyptic number.

13157292 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13157292 is an abundant number, since it is smaller than the sum of its proper divisors (17933908).

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

13157292 is a wasteful number, since it uses less digits than its factorization.

13157292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13965 (or 13963 counting only the distinct ones).

The product of its digits is 3780, while the sum is 30.

The square root of 13157292 is about 3627.2981680584. The cubic root of 13157292 is about 236.0779929907.

The spelling of 13157292 in words is "thirteen million, one hundred fifty-seven thousand, two hundred ninety-two".