322945913 has 2 divisors, whose sum is σ = 322945914. Its totient is φ = 322945912.

The previous prime is 322945897. The next prime is 322945919. The reversal of 322945913 is 319549223.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 318158569 + 4787344 = 17837^2 + 2188^2 .

It is a cyclic number.

It is not a de Polignac number, because 322945913 - 2⁴ = 322945897 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (322945919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161472956 + 161472957.

It is an arithmetic number, because the mean of its divisors is an integer number (161472957).

Almost surely, 2^322945913 is an apocalyptic number.

It is an amenable number.

322945913 is a deficient number, since it is larger than the sum of its proper divisors (1).

322945913 is an equidigital number, since it uses as much as digits as its factorization.

322945913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58320, while the sum is 38.

The square root of 322945913 is about 17970.6959520214. The cubic root of 322945913 is about 686.0829039875.

The spelling of 322945913 in words is "three hundred twenty-two million, nine hundred forty-five thousand, nine hundred thirteen".