323135957 has 2 divisors, whose sum is σ = 323135958. Its totient is φ = 323135956.

The previous prime is 323135903. The next prime is 323135999. The reversal of 323135957 is 759531323.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 322777156 + 358801 = 17966^2 + 599^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-323135957 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 323135957.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (323135557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161567978 + 161567979.

It is an arithmetic number, because the mean of its divisors is an integer number (161567979).

Almost surely, 2^323135957 is an apocalyptic number.

It is an amenable number.

323135957 is a deficient number, since it is larger than the sum of its proper divisors (1).

323135957 is an equidigital number, since it uses as much as digits as its factorization.

323135957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 85050, while the sum is 38.

The square root of 323135957 is about 17975.9827825908. The cubic root of 323135957 is about 686.2174573460.

The spelling of 323135957 in words is "three hundred twenty-three million, one hundred thirty-five thousand, nine hundred fifty-seven".