13157234 has 16 divisors (see below), whose sum is σ = 20921280. Its totient is φ = 6188400.

The previous prime is 13157231. The next prime is 13157239. The reversal of 13157234 is 43275131.

13157234 = 378² + 379² + ... + 453².

It is a super-2 number, since 2×13157234² = 346225613061512, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13157231) 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, 4592 + ... + 6884.

It is an arithmetic number, because the mean of its divisors is an integer number (1307580).

Almost surely, 2^13157234 is an apocalyptic number.

13157234 is a deficient number, since it is larger than the sum of its proper divisors (7764046).

13157234 is a wasteful number, since it uses less digits than its factorization.

13157234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2465.

The product of its digits is 2520, while the sum is 26.

The square root of 13157234 is about 3627.2901731182. The cubic root of 13157234 is about 236.0776460970.

The spelling of 13157234 in words is "thirteen million, one hundred fifty-seven thousand, two hundred thirty-four".