315211134 has 32 divisors (see below), whose sum is σ = 725679360. Its totient is φ = 89410752.

The previous prime is 315211133. The next prime is 315211147. The reversal of 315211134 is 431112513.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 315211134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315211133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21159 + ... + 32834.

It is an arithmetic number, because the mean of its divisors is an integer number (22677480).

Almost surely, 2^315211134 is an apocalyptic number.

315211134 is an abundant number, since it is smaller than the sum of its proper divisors (410468226).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

315211134 is a wasteful number, since it uses less digits than its factorization.

315211134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54144.

The product of its digits is 360, while the sum is 21.

The square root of 315211134 is about 17754.1863795557. The cubic root of 315211134 is about 680.5611961817.

Adding to 315211134 its reverse (431112513), we get a palindrome (746323647).

The spelling of 315211134 in words is "three hundred fifteen million, two hundred eleven thousand, one hundred thirty-four".