315997090 has 16 divisors (see below), whose sum is σ = 569669760. Its totient is φ = 126204400.

The previous prime is 315997063. The next prime is 315997091. The reversal of 315997090 is 90799513.

It is not an unprimeable number, because it can be changed into a prime (315997091) 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, 17386 + ... + 30565.

It is an arithmetic number, because the mean of its divisors is an integer number (35604360).

Almost surely, 2^315997090 is an apocalyptic number.

315997090 is a deficient number, since it is larger than the sum of its proper divisors (253672670).

315997090 is a wasteful number, since it uses less digits than its factorization.

315997090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48617.

The product of its (nonzero) digits is 76545, while the sum is 43.

The square root of 315997090 is about 17776.3069842979. The cubic root of 315997090 is about 681.1263699568.

The spelling of 315997090 in words is "three hundred fifteen million, nine hundred ninety-seven thousand, ninety".