315331634 has 4 divisors (see below), whose sum is σ = 472997454. Its totient is φ = 157665816.

The previous prime is 315331579. The next prime is 315331637. The reversal of 315331634 is 436133513.

315331634 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 252969025 + 62362609 = 15905^2 + 7897^2 .

It is a super-2 number, since 2×315331634² = 198868078802219912, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 315331597 and 315331606.

It is not an unprimeable number, because it can be changed into a prime (315331637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78832907 + ... + 78832910.

Almost surely, 2^315331634 is an apocalyptic number.

315331634 is a deficient number, since it is larger than the sum of its proper divisors (157665820).

315331634 is a wasteful number, since it uses less digits than its factorization.

315331634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157665819.

The product of its digits is 9720, while the sum is 29.

The square root of 315331634 is about 17757.5796211083. The cubic root of 315331634 is about 680.6479075607.

The spelling of 315331634 in words is "three hundred fifteen million, three hundred thirty-one thousand, six hundred thirty-four".