315211390 has 32 divisors (see below), whose sum is σ = 611868096. Its totient is φ = 116225280.

The previous prime is 315211373. The next prime is 315211409. The reversal of 315211390 is 93112513.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137050 + ... + 139330.

It is an arithmetic number, because the mean of its divisors is an integer number (19120878).

Almost surely, 2^315211390 is an apocalyptic number.

315211390 is a deficient number, since it is larger than the sum of its proper divisors (296656706).

315211390 is a wasteful number, since it uses less digits than its factorization.

315211390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3364.

The product of its (nonzero) digits is 810, while the sum is 25.

The square root of 315211390 is about 17754.1935891214. The cubic root of 315211390 is about 680.5613804219.

The spelling of 315211390 in words is "three hundred fifteen million, two hundred eleven thousand, three hundred ninety".