319899953 has 2 divisors, whose sum is σ = 319899954. Its totient is φ = 319899952.

The previous prime is 319899901. The next prime is 319899959. The reversal of 319899953 is 359998913.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 279157264 + 40742689 = 16708^2 + 6383^2 .

It is a cyclic number.

It is not a de Polignac number, because 319899953 - 2¹⁴ = 319883569 is a prime.

It is not a weakly prime, because it can be changed into another prime (319899959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159949976 + 159949977.

It is an arithmetic number, because the mean of its divisors is an integer number (159949977).

Almost surely, 2^319899953 is an apocalyptic number.

It is an amenable number.

319899953 is a deficient number, since it is larger than the sum of its proper divisors (1).

319899953 is an equidigital number, since it uses as much as digits as its factorization.

319899953 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2361960, while the sum is 56.

The square root of 319899953 is about 17885.7472027310. The cubic root of 319899953 is about 683.9190887558.

The spelling of 319899953 in words is "three hundred nineteen million, eight hundred ninety-nine thousand, nine hundred fifty-three".