319598131 has 2 divisors, whose sum is σ = 319598132. Its totient is φ = 319598130.

The previous prime is 319598129. The next prime is 319598143. The reversal of 319598131 is 131895913.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 319598131 - 2¹ = 319598129 is a prime.

It is a super-2 number, since 2×319598131² = 204285930677386322, which contains 22 as substring.

Together with 319598129, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (319598171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159799065 + 159799066.

It is an arithmetic number, because the mean of its divisors is an integer number (159799066).

Almost surely, 2^319598131 is an apocalyptic number.

319598131 is a deficient number, since it is larger than the sum of its proper divisors (1).

319598131 is an equidigital number, since it uses as much as digits as its factorization.

319598131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29160, while the sum is 40.

The square root of 319598131 is about 17877.3077111740. The cubic root of 319598131 is about 683.7039310915.

The spelling of 319598131 in words is "three hundred nineteen million, five hundred ninety-eight thousand, one hundred thirty-one".