315224207 has 2 divisors, whose sum is σ = 315224208. Its totient is φ = 315224206.

The previous prime is 315224137. The next prime is 315224227. The reversal of 315224207 is 702422513.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 315224207 - 2²² = 311029903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315224227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157612103 + 157612104.

It is an arithmetic number, because the mean of its divisors is an integer number (157612104).

Almost surely, 2^315224207 is an apocalyptic number.

315224207 is a deficient number, since it is larger than the sum of its proper divisors (1).

315224207 is an equidigital number, since it uses as much as digits as its factorization.

315224207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 315224207 is about 17754.5545424266. The cubic root of 315224207 is about 680.5706045354.

The spelling of 315224207 in words is "three hundred fifteen million, two hundred twenty-four thousand, two hundred seven".