322945313 has 2 divisors, whose sum is σ = 322945314. Its totient is φ = 322945312.

The previous prime is 322945307. The next prime is 322945331. The reversal of 322945313 is 313549223.

Together with next prime (322945331) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 303874624 + 19070689 = 17432^2 + 4367^2 .

It is a cyclic number.

It is not a de Polignac number, because 322945313 - 2⁸ = 322945057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 322945313.

It is not a weakly prime, because it can be changed into another prime (322945013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161472656 + 161472657.

It is an arithmetic number, because the mean of its divisors is an integer number (161472657).

Almost surely, 2^322945313 is an apocalyptic number.

It is an amenable number.

322945313 is a deficient number, since it is larger than the sum of its proper divisors (1).

322945313 is an equidigital number, since it uses as much as digits as its factorization.

322945313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19440, while the sum is 32.

The square root of 322945313 is about 17970.6792581694. The cubic root of 322945313 is about 686.0824790969.

The spelling of 322945313 in words is "three hundred twenty-two million, nine hundred forty-five thousand, three hundred thirteen".