315055519 has 2 divisors, whose sum is σ = 315055520. Its totient is φ = 315055518.

The previous prime is 315055501. The next prime is 315055547. The reversal of 315055519 is 915550513.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 315055519 - 2¹⁷ = 314924447 is a prime.

It is a super-2 number, since 2×315055519² = 198519960104718722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315055579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157527759 + 157527760.

It is an arithmetic number, because the mean of its divisors is an integer number (157527760).

Almost surely, 2^315055519 is an apocalyptic number.

315055519 is a deficient number, since it is larger than the sum of its proper divisors (1).

315055519 is an equidigital number, since it uses as much as digits as its factorization.

315055519 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16875, while the sum is 34.

The square root of 315055519 is about 17749.8033510234. The cubic root of 315055519 is about 680.4491834683.

The spelling of 315055519 in words is "three hundred fifteen million, fifty-five thousand, five hundred nineteen".