13138659 has 8 divisors (see below), whose sum is σ = 19464720. Its totient is φ = 8759088.

The previous prime is 13138639. The next prime is 13138673. The reversal of 13138659 is 95683131.

It is a happy number.

13138659 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13138659 - 2⁸ = 13138403 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13138639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 243282 + ... + 243335.

It is an arithmetic number, because the mean of its divisors is an integer number (2433090).

Almost surely, 2^13138659 is an apocalyptic number.

13138659 is a deficient number, since it is larger than the sum of its proper divisors (6326061).

13138659 is an equidigital number, since it uses as much as digits as its factorization.

13138659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486626 (or 486620 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 13138659 is about 3624.7288174428. The cubic root of 13138659 is about 235.9664979256.

The spelling of 13138659 in words is "thirteen million, one hundred thirty-eight thousand, six hundred fifty-nine".