13017131 has 4 divisors (see below), whose sum is σ = 13334664. Its totient is φ = 12699600.

The previous prime is 13017127. The next prime is 13017157. The reversal of 13017131 is 13171031.

13017131 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13017131 - 2² = 13017127 is a prime.

It is a super-2 number, since 2×13017131² = 338891398942322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13017101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158705 + ... + 158786.

It is an arithmetic number, because the mean of its divisors is an integer number (3333666).

Almost surely, 2^13017131 is an apocalyptic number.

13017131 is a deficient number, since it is larger than the sum of its proper divisors (317533).

13017131 is an equidigital number, since it uses as much as digits as its factorization.

13017131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317532.

The product of its (nonzero) digits is 63, while the sum is 17.

The square root of 13017131 is about 3607.9261356075. The cubic root of 13017131 is about 235.2367073206.

Adding to 13017131 its reverse (13171031), we get a palindrome (26188162).

The spelling of 13017131 in words is "thirteen million, seventeen thousand, one hundred thirty-one".