319901213 has 2 divisors, whose sum is σ = 319901214. Its totient is φ = 319901212.

The previous prime is 319901203. The next prime is 319901237. The reversal of 319901213 is 312109913.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 234763684 + 85137529 = 15322^2 + 9227^2 .

It is a cyclic number.

It is not a de Polignac number, because 319901213 - 2¹⁸ = 319639069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (319901203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159950606 + 159950607.

It is an arithmetic number, because the mean of its divisors is an integer number (159950607).

Almost surely, 2^319901213 is an apocalyptic number.

It is an amenable number.

319901213 is a deficient number, since it is larger than the sum of its proper divisors (1).

319901213 is an equidigital number, since it uses as much as digits as its factorization.

319901213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1458, while the sum is 29.

The square root of 319901213 is about 17885.7824262737. The cubic root of 319901213 is about 683.9199866792.

The spelling of 319901213 in words is "three hundred nineteen million, nine hundred one thousand, two hundred thirteen".