315212297 has 2 divisors, whose sum is σ = 315212298. Its totient is φ = 315212296.

The previous prime is 315212269. The next prime is 315212311. The reversal of 315212297 is 792212513.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 302899216 + 12313081 = 17404^2 + 3509^2 .

It is a cyclic number.

It is not a de Polignac number, because 315212297 - 2¹⁴ = 315195913 is a prime.

It is not a weakly prime, because it can be changed into another prime (315212207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157606148 + 157606149.

It is an arithmetic number, because the mean of its divisors is an integer number (157606149).

Almost surely, 2^315212297 is an apocalyptic number.

It is an amenable number.

315212297 is a deficient number, since it is larger than the sum of its proper divisors (1).

315212297 is an equidigital number, since it uses as much as digits as its factorization.

315212297 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7560, while the sum is 32.

The square root of 315212297 is about 17754.2191323640. The cubic root of 315212297 is about 680.5620331781.

The spelling of 315212297 in words is "three hundred fifteen million, two hundred twelve thousand, two hundred ninety-seven".