13138964 has 12 divisors (see below), whose sum is σ = 23284800. Its totient is φ = 6486168.

The previous prime is 13138949. The next prime is 13138997. The reversal of 13138964 is 46983131.

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, 20474 + ... + 21105.

It is an arithmetic number, because the mean of its divisors is an integer number (1940400).

Almost surely, 2^13138964 is an apocalyptic number.

It is an amenable number.

13138964 is a deficient number, since it is larger than the sum of its proper divisors (10145836).

13138964 is a wasteful number, since it uses less digits than its factorization.

13138964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41662 (or 41660 counting only the distinct ones).

The product of its digits is 15552, while the sum is 35.

The square root of 13138964 is about 3624.7708893115. The cubic root of 13138964 is about 235.9683238152.

The spelling of 13138964 in words is "thirteen million, one hundred thirty-eight thousand, nine hundred sixty-four".