315323279 has 2 divisors, whose sum is σ = 315323280. Its totient is φ = 315323278.

The previous prime is 315323269. The next prime is 315323291. The reversal of 315323279 is 972323513.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 315323279 - 2⁴ = 315323263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315323209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157661639 + 157661640.

It is an arithmetic number, because the mean of its divisors is an integer number (157661640).

Almost surely, 2^315323279 is an apocalyptic number.

315323279 is a deficient number, since it is larger than the sum of its proper divisors (1).

315323279 is an equidigital number, since it uses as much as digits as its factorization.

315323279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34020, while the sum is 35.

The square root of 315323279 is about 17757.3443678947. The cubic root of 315323279 is about 680.6418960447.

The spelling of 315323279 in words is "three hundred fifteen million, three hundred twenty-three thousand, two hundred seventy-nine".