315844427 has 2 divisors, whose sum is σ = 315844428. Its totient is φ = 315844426.

The previous prime is 315844409. The next prime is 315844433. The reversal of 315844427 is 724448513.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 315844427 - 2¹⁸ = 315582283 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (315844927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157922213 + 157922214.

It is an arithmetic number, because the mean of its divisors is an integer number (157922214).

Almost surely, 2^315844427 is an apocalyptic number.

315844427 is a deficient number, since it is larger than the sum of its proper divisors (1).

315844427 is an equidigital number, since it uses as much as digits as its factorization.

315844427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 107520, while the sum is 38.

The square root of 315844427 is about 17772.0124634212. The cubic root of 315844427 is about 681.0166647854.

The spelling of 315844427 in words is "three hundred fifteen million, eight hundred forty-four thousand, four hundred twenty-seven".