315272479 has 2 divisors, whose sum is σ = 315272480. Its totient is φ = 315272478.

The previous prime is 315272359. The next prime is 315272513. The reversal of 315272479 is 974272513.

It is a strong prime.

It is an emirp because it is prime and its reverse (974272513) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 315272479 - 2⁷ = 315272351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315272179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157636239 + 157636240.

It is an arithmetic number, because the mean of its divisors is an integer number (157636240).

Almost surely, 2^315272479 is an apocalyptic number.

315272479 is a deficient number, since it is larger than the sum of its proper divisors (1).

315272479 is an equidigital number, since it uses as much as digits as its factorization.

315272479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 105840, while the sum is 40.

The square root of 315272479 is about 17755.9139162139. The cubic root of 315272479 is about 680.6053425903.

The spelling of 315272479 in words is "three hundred fifteen million, two hundred seventy-two thousand, four hundred seventy-nine".