13813172 has 12 divisors (see below), whose sum is σ = 24278436. Its totient is φ = 6876480.

The previous prime is 13813169. The next prime is 13813181. The reversal of 13813172 is 27131831.

13813172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 4351396 + 9461776 = 2086^2 + 3076^2 .

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6479 + ... + 8342.

It is an arithmetic number, because the mean of its divisors is an integer number (2023203).

Almost surely, 2^13813172 is an apocalyptic number.

It is an amenable number.

13813172 is a deficient number, since it is larger than the sum of its proper divisors (10465264).

13813172 is a wasteful number, since it uses less digits than its factorization.

13813172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15058 (or 15056 counting only the distinct ones).

The product of its digits is 1008, while the sum is 26.

The square root of 13813172 is about 3716.6075929536. The cubic root of 13813172 is about 239.9373215953.

The spelling of 13813172 in words is "thirteen million, eight hundred thirteen thousand, one hundred seventy-two".