315312134 has 4 divisors (see below), whose sum is σ = 472968204. Its totient is φ = 157656066.

The previous prime is 315312121. The next prime is 315312139. The reversal of 315312134 is 431213513.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315312139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78828032 + ... + 78828035.

It is an arithmetic number, because the mean of its divisors is an integer number (118242051).

Almost surely, 2^315312134 is an apocalyptic number.

315312134 is a deficient number, since it is larger than the sum of its proper divisors (157656070).

315312134 is a wasteful number, since it uses less digits than its factorization.

315312134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157656069.

The product of its digits is 1080, while the sum is 23.

The square root of 315312134 is about 17757.0305513056. The cubic root of 315312134 is about 680.6338769272.

Adding to 315312134 its reverse (431213513), we get a palindrome (746525647).

The spelling of 315312134 in words is "three hundred fifteen million, three hundred twelve thousand, one hundred thirty-four".