13639132 has 24 divisors (see below), whose sum is σ = 26536832. Its totient is φ = 6091200.

The previous prime is 13639111. The next prime is 13639139. The reversal of 13639132 is 23193631.

13639132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nialpdrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 13639132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13639139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2619 + ... + 5842.

Almost surely, 2^13639132 is an apocalyptic number.

It is an amenable number.

13639132 is a deficient number, since it is larger than the sum of its proper divisors (12897700).

13639132 is a wasteful number, since it uses less digits than its factorization.

13639132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8509 (or 8507 counting only the distinct ones).

The product of its digits is 2916, while the sum is 28.

The square root of 13639132 is about 3693.1195485660. The cubic root of 13639132 is about 238.9253573153.

The spelling of 13639132 in words is "thirteen million, six hundred thirty-nine thousand, one hundred thirty-two".