13317965 has 16 divisors (see below), whose sum is σ = 16542768. Its totient is φ = 10285056.

The previous prime is 13317959. The next prime is 13317971. The reversal of 13317965 is 56971331.

It is an interprime number because it is at equal distance from previous prime (13317959) and next prime (13317971).

It can be written as a sum of positive squares in 8 ways, for example, as 24649 + 13293316 = 157^2 + 3646^2 .

It is a cyclic number.

It is not a de Polignac number, because 13317965 - 2⁸ = 13317709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35519 + ... + 35891.

It is an arithmetic number, because the mean of its divisors is an integer number (1033923).

Almost surely, 2^13317965 is an apocalyptic number.

It is an amenable number.

13317965 is a deficient number, since it is larger than the sum of its proper divisors (3224803).

13317965 is a wasteful number, since it uses less digits than its factorization.

13317965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608.

The product of its digits is 17010, while the sum is 35.

The square root of 13317965 is about 3649.3787142471. The cubic root of 13317965 is about 237.0350794034.

The spelling of 13317965 in words is "thirteen million, three hundred seventeen thousand, nine hundred sixty-five".