316491323 has 2 divisors, whose sum is σ = 316491324. Its totient is φ = 316491322.

The previous prime is 316491311. The next prime is 316491337. The reversal of 316491323 is 323194613.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 316491323 - 2⁸ = 316491067 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 316491323.

It is not a weakly prime, because it can be changed into another prime (316491353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158245661 + 158245662.

It is an arithmetic number, because the mean of its divisors is an integer number (158245662).

Almost surely, 2^316491323 is an apocalyptic number.

316491323 is a deficient number, since it is larger than the sum of its proper divisors (1).

316491323 is an equidigital number, since it uses as much as digits as its factorization.

316491323 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11664, while the sum is 32.

The square root of 316491323 is about 17790.2030061492. The cubic root of 316491323 is about 681.4812886024.

The spelling of 316491323 in words is "three hundred sixteen million, four hundred ninety-one thousand, three hundred twenty-three".