319913113 has 6 divisors (see below), whose sum is σ = 346414974. Its totient is φ = 295304256.

The previous prime is 319913093. The next prime is 319913129. The reversal of 319913113 is 311319913.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 5631129 + 314281984 = 2373^2 + 17728^2 .

It is a de Polignac number, because none of the positive numbers 2^k-319913113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (319913173) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 946320 + ... + 946657.

It is an arithmetic number, because the mean of its divisors is an integer number (57735829).

Almost surely, 2^319913113 is an apocalyptic number.

It is an amenable number.

319913113 is a deficient number, since it is larger than the sum of its proper divisors (26501861).

319913113 is a wasteful number, since it uses less digits than its factorization.

319913113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1893003 (or 1892990 counting only the distinct ones).

The product of its digits is 2187, while the sum is 31.

The square root of 319913113 is about 17886.1150896443. The cubic root of 319913113 is about 683.9284669502.

The spelling of 319913113 in words is "three hundred nineteen million, nine hundred thirteen thousand, one hundred thirteen".