315139499 has 2 divisors, whose sum is σ = 315139500. Its totient is φ = 315139498.

The previous prime is 315139483. The next prime is 315139511. The reversal of 315139499 is 994931513.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 315139499 - 2⁴ = 315139483 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (315139439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157569749 + 157569750.

It is an arithmetic number, because the mean of its divisors is an integer number (157569750).

Almost surely, 2^315139499 is an apocalyptic number.

315139499 is a deficient number, since it is larger than the sum of its proper divisors (1).

315139499 is an equidigital number, since it uses as much as digits as its factorization.

315139499 is an evil number, because the sum of its binary digits is even.

The product of its digits is 131220, while the sum is 44.

The square root of 315139499 is about 17752.1688534106. The cubic root of 315139499 is about 680.5096374119.

The spelling of 315139499 in words is "three hundred fifteen million, one hundred thirty-nine thousand, four hundred ninety-nine".