13115317 has 4 divisors (see below), whose sum is σ = 13311136. Its totient is φ = 12919500.

The previous prime is 13115293. The next prime is 13115321. The reversal of 13115317 is 71351131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13115317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13115017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97809 + ... + 97942.

It is an arithmetic number, because the mean of its divisors is an integer number (3327784).

Almost surely, 2^13115317 is an apocalyptic number.

It is an amenable number.

13115317 is a deficient number, since it is larger than the sum of its proper divisors (195819).

13115317 is an equidigital number, since it uses as much as digits as its factorization.

13115317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195818.

The product of its digits is 315, while the sum is 22.

The square root of 13115317 is about 3621.5075590146. The cubic root of 13115317 is about 235.8266765786.

Adding to 13115317 its reverse (71351131), we get a palindrome (84466448).

The spelling of 13115317 in words is "thirteen million, one hundred fifteen thousand, three hundred seventeen".