12713139 has 16 divisors (see below), whose sum is σ = 18892800. Its totient is φ = 8449128.

The previous prime is 12713137. The next prime is 12713153. The reversal of 12713139 is 93131721.

It is not a de Polignac number, because 12713139 - 2¹ = 12713137 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (12713137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12442 + ... + 13424.

It is an arithmetic number, because the mean of its divisors is an integer number (1180800).

Almost surely, 2^12713139 is an apocalyptic number.

12713139 is a deficient number, since it is larger than the sum of its proper divisors (6179661).

12713139 is an equidigital number, since it uses as much as digits as its factorization.

12713139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1471 (or 1465 counting only the distinct ones).

The product of its digits is 1134, while the sum is 27.

The square root of 12713139 is about 3565.5489058489. The cubic root of 12713139 is about 233.3910861578.

The spelling of 12713139 in words is "twelve million, seven hundred thirteen thousand, one hundred thirty-nine".