13517913 has 16 divisors (see below), whose sum is σ = 18636416. Its totient is φ = 8709120.

The previous prime is 13517909. The next prime is 13517923. The reversal of 13517913 is 31971531.

It is a happy number.

13517913 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 13517913 - 2² = 13517909 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13517923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21108 + ... + 21738.

It is an arithmetic number, because the mean of its divisors is an integer number (1164776).

Almost surely, 2^13517913 is an apocalyptic number.

It is an amenable number.

13517913 is a deficient number, since it is larger than the sum of its proper divisors (5118503).

13517913 is a wasteful number, since it uses less digits than its factorization.

13517913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864.

The product of its digits is 2835, while the sum is 30.

The square root of 13517913 is about 3676.6714566303. The cubic root of 13517913 is about 238.2154264899.

The spelling of 13517913 in words is "thirteen million, five hundred seventeen thousand, nine hundred thirteen".