315613216 has 24 divisors (see below), whose sum is σ = 629233920. Its totient is φ = 155807808.

The previous prime is 315613213. The next prime is 315613223. The reversal of 315613216 is 612316513.

It is a super-2 number, since 2×315613216² = 199223404227725312, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (315613213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59896 + ... + 64951.

It is an arithmetic number, because the mean of its divisors is an integer number (26218080).

Almost surely, 2^315613216 is an apocalyptic number.

It is an amenable number.

315613216 is a deficient number, since it is larger than the sum of its proper divisors (313620704).

315613216 is a wasteful number, since it uses less digits than its factorization.

315613216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124936 (or 124928 counting only the distinct ones).

The product of its digits is 3240, while the sum is 28.

The square root of 315613216 is about 17765.5063536056. The cubic root of 315613216 is about 680.8504468964.

Adding to 315613216 its reverse (612316513), we get a palindrome (927929729).

The spelling of 315613216 in words is "three hundred fifteen million, six hundred thirteen thousand, two hundred sixteen".