13065872 has 20 divisors (see below), whose sum is σ = 25405740. Its totient is φ = 6509568.

The previous prime is 13065853. The next prime is 13065881. The reversal of 13065872 is 27856031.

It is a happy number.

13065872 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 2202256 + 10863616 = 1484^2 + 3296^2 .

It is a super-2 number, since 2×13065872² = 341434022240768, which contains 22 as substring.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

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, 3704 + ... + 6312.

It is an arithmetic number, because the mean of its divisors is an integer number (1270287).

Almost surely, 2^13065872 is an apocalyptic number.

It is an amenable number.

13065872 is a deficient number, since it is larger than the sum of its proper divisors (12339868).

13065872 is a wasteful number, since it uses less digits than its factorization.

13065872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2930 (or 2924 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 13065872 is about 3614.6745358331. The cubic root of 13065872 is about 235.5299463213.

The spelling of 13065872 in words is "thirteen million, sixty-five thousand, eight hundred seventy-two".