317268913 has 4 divisors (see below), whose sum is σ = 341674228. Its totient is φ = 292863600.

The previous prime is 317268907. The next prime is 317268929. The reversal of 317268913 is 319862713.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 319862713 = 73 ⋅4381681.

It can be written as a sum of positive squares in 2 ways, for example, as 206008609 + 111260304 = 14353^2 + 10548^2 .

It is a cyclic number.

It is not a de Polignac number, because 317268913 - 2⁵ = 317268881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (317266913) 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, 12202638 + ... + 12202663.

It is an arithmetic number, because the mean of its divisors is an integer number (85418557).

Almost surely, 2^317268913 is an apocalyptic number.

It is an amenable number.

317268913 is a deficient number, since it is larger than the sum of its proper divisors (24405315).

317268913 is a wasteful number, since it uses less digits than its factorization.

317268913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24405314.

The product of its digits is 54432, while the sum is 40.

The square root of 317268913 is about 17812.0440432871. The cubic root of 317268913 is about 682.0389443796.

The spelling of 317268913 in words is "three hundred seventeen million, two hundred sixty-eight thousand, nine hundred thirteen".