315018427 has 2 divisors, whose sum is σ = 315018428. Its totient is φ = 315018426.

The previous prime is 315018413. The next prime is 315018443. The reversal of 315018427 is 724810513.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 315018427 - 2²³ = 306629819 is a prime.

It is not a weakly prime, because it can be changed into another prime (315018467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157509213 + 157509214.

It is an arithmetic number, because the mean of its divisors is an integer number (157509214).

Almost surely, 2^315018427 is an apocalyptic number.

315018427 is a deficient number, since it is larger than the sum of its proper divisors (1).

315018427 is an equidigital number, since it uses as much as digits as its factorization.

315018427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 315018427 is about 17748.7584636222. The cubic root of 315018427 is about 680.4224789563.

The spelling of 315018427 in words is "three hundred fifteen million, eighteen thousand, four hundred twenty-seven".