13439013 has 16 divisors (see below), whose sum is σ = 20643840. Its totient is φ = 7617456.

The previous prime is 13439009. The next prime is 13439017. The reversal of 13439013 is 31093431.

It is an interprime number because it is at equal distance from previous prime (13439009) and next prime (13439017).

It is not a de Polignac number, because 13439013 - 2² = 13439009 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13439017) 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, 148 + ... + 5186.

It is an arithmetic number, because the mean of its divisors is an integer number (1290240).

Almost surely, 2^13439013 is an apocalyptic number.

It is an amenable number.

13439013 is a deficient number, since it is larger than the sum of its proper divisors (7204827).

13439013 is a wasteful number, since it uses less digits than its factorization.

13439013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5176.

The product of its (nonzero) digits is 972, while the sum is 24.

The square root of 13439013 is about 3665.9259403321. The cubic root of 13439013 is about 237.7510578778.

The spelling of 13439013 in words is "thirteen million, four hundred thirty-nine thousand, thirteen".