315800019 has 8 divisors (see below), whose sum is σ = 467851920. Its totient is φ = 210533328.

The previous prime is 315799927. The next prime is 315800027. The reversal of 315800019 is 910008513.

It is not a de Polignac number, because 315800019 - 2²³ = 307411411 is a prime.

It is a super-2 number, since 2×315800019² = 199459304000800722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 11696297 = 315800019 / (3 + 1 + 5 + 8 + 0 + 0 + 0 + 1 + 9).

It is a junction number, because it is equal to n+sod(n) for n = 315799965 and 315800001.

It is not an unprimeable number, because it can be changed into a prime (315800029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5848122 + ... + 5848175.

It is an arithmetic number, because the mean of its divisors is an integer number (58481490).

Almost surely, 2^315800019 is an apocalyptic number.

315800019 is a deficient number, since it is larger than the sum of its proper divisors (152051901).

315800019 is a wasteful number, since it uses less digits than its factorization.

315800019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11696306 (or 11696300 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The square root of 315800019 is about 17770.7630393295. The cubic root of 315800019 is about 680.9847461118.

The spelling of 315800019 in words is "three hundred fifteen million, eight hundred thousand, nineteen".