315015320 has 32 divisors (see below), whose sum is σ = 710791200. Its totient is φ = 125649408.

The previous prime is 315015293. The next prime is 315015329. The reversal of 315015320 is 23510513.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 315015292 and 315015301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315015329) 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 in 7 ways as a sum of consecutive naturals, for example, 3392 + ... + 25328.

It is an arithmetic number, because the mean of its divisors is an integer number (22212225).

Almost surely, 2^315015320 is an apocalyptic number.

It is an amenable number.

315015320 is an abundant number, since it is smaller than the sum of its proper divisors (395775880).

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

315015320 is a wasteful number, since it uses less digits than its factorization.

315015320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22307 (or 22303 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 315015320 is about 17748.6709361574. The cubic root of 315015320 is about 680.4202419659.

Adding to 315015320 its reverse (23510513), we get a palindrome (338525833).

The spelling of 315015320 in words is "three hundred fifteen million, fifteen thousand, three hundred twenty".