313225165 has 32 divisors (see below), whose sum is σ = 443341440. Its totient is φ = 209952000.

The previous prime is 313225123. The next prime is 313225169. The reversal of 313225165 is 561522313.

It is not a de Polignac number, because 313225165 - 2⁷ = 313225037 is a prime.

It is a super-2 number, since 2×313225165² = 196220007978554450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313225169) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34615 + ... + 42715.

It is an arithmetic number, because the mean of its divisors is an integer number (13854420).

Almost surely, 2^313225165 is an apocalyptic number.

It is an amenable number.

313225165 is a deficient number, since it is larger than the sum of its proper divisors (130116275).

313225165 is a wasteful number, since it uses less digits than its factorization.

313225165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8173.

The product of its digits is 5400, while the sum is 28.

The square root of 313225165 is about 17698.1684080585. The cubic root of 313225165 is about 679.1289054913.

Adding to 313225165 its reverse (561522313), we get a palindrome (874747478).

The spelling of 313225165 in words is "three hundred thirteen million, two hundred twenty-five thousand, one hundred sixty-five".