13312139 has 8 divisors (see below), whose sum is σ = 14395968. Its totient is φ = 12261760.

The previous prime is 13312133. The next prime is 13312151. The reversal of 13312139 is 93121331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-13312139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13312133) 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, 7532 + ... + 9129.

It is an arithmetic number, because the mean of its divisors is an integer number (1799496).

Almost surely, 2^13312139 is an apocalyptic number.

13312139 is a deficient number, since it is larger than the sum of its proper divisors (1083829).

13312139 is a wasteful number, since it uses less digits than its factorization.

13312139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16725.

The product of its digits is 486, while the sum is 23.

The square root of 13312139 is about 3648.5804088714. The cubic root of 13312139 is about 237.0005103635. Note that the first 3 decimals are identical.

The spelling of 13312139 in words is "thirteen million, three hundred twelve thousand, one hundred thirty-nine".