315161279 has 2 divisors, whose sum is σ = 315161280. Its totient is φ = 315161278.

The previous prime is 315161263. The next prime is 315161281. The reversal of 315161279 is 972161513.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 315161279 - 2⁴ = 315161263 is a prime.

Together with 315161281, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315164279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157580639 + 157580640.

It is an arithmetic number, because the mean of its divisors is an integer number (157580640).

Almost surely, 2^315161279 is an apocalyptic number.

315161279 is a deficient number, since it is larger than the sum of its proper divisors (1).

315161279 is an equidigital number, since it uses as much as digits as its factorization.

315161279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11340, while the sum is 35.

The square root of 315161279 is about 17752.7822889822. The cubic root of 315161279 is about 680.5253142350.

The spelling of 315161279 in words is "three hundred fifteen million, one hundred sixty-one thousand, two hundred seventy-nine".