319656913 has 2 divisors, whose sum is σ = 319656914. Its totient is φ = 319656912.

The previous prime is 319656907. The next prime is 319656941.

319656913 is nontrivially palindromic in base 10.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 308950929 + 10705984 = 17577^2 + 3272^2 .

It is a palprime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-319656913 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 319656913.

It is not a weakly prime, because it can be changed into another prime (319656943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159828456 + 159828457.

It is an arithmetic number, because the mean of its divisors is an integer number (159828457).

Almost surely, 2^319656913 is an apocalyptic number.

It is an amenable number.

319656913 is a deficient number, since it is larger than the sum of its proper divisors (1).

319656913 is an equidigital number, since it uses as much as digits as its factorization.

319656913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 131220, while the sum is 43.

The square root of 319656913 is about 17878.9516750843. The cubic root of 319656913 is about 683.7458452089.

The spelling of 319656913 in words is "three hundred nineteen million, six hundred fifty-six thousand, nine hundred thirteen".