313216216 has 32 divisors (see below), whose sum is σ = 626918400. Its totient is φ = 146270880.

The previous prime is 313216181. The next prime is 313216217. The reversal of 313216216 is 612612313.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313216217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3720 + ... + 25303.

It is an arithmetic number, because the mean of its divisors is an integer number (19591200).

Almost surely, 2^313216216 is an apocalyptic number.

It is an amenable number.

313216216 is an abundant number, since it is smaller than the sum of its proper divisors (313702184).

313216216 is a wasteful number, since it uses less digits than its factorization.

313216216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29119 (or 29115 counting only the distinct ones).

The product of its digits is 1296, while the sum is 25.

The square root of 313216216 is about 17697.9155834804. The cubic root of 313216216 is about 679.1224377452.

Adding to 313216216 its reverse (612612313), we get a palindrome (925828529).

The spelling of 313216216 in words is "three hundred thirteen million, two hundred sixteen thousand, two hundred sixteen".