313225117 has 4 divisors (see below), whose sum is σ = 320864796. Its totient is φ = 305585440.

The previous prime is 313225111. The next prime is 313225123. The reversal of 313225117 is 711522313.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (313225111) and next prime (313225123).

It can be written as a sum of positive squares in 2 ways, for example, as 172423161 + 140801956 = 13131^2 + 11866^2 .

It is a cyclic number.

It is not a de Polignac number, because 313225117 - 2¹¹ = 313223069 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 313225091 and 313225100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313225111) 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, 3819778 + ... + 3819859.

It is an arithmetic number, because the mean of its divisors is an integer number (80216199).

Almost surely, 2^313225117 is an apocalyptic number.

It is an amenable number.

313225117 is a deficient number, since it is larger than the sum of its proper divisors (7639679).

313225117 is an equidigital number, since it uses as much as digits as its factorization.

313225117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7639678.

The product of its digits is 1260, while the sum is 25.

The square root of 313225117 is about 17698.1670519859. The cubic root of 313225117 is about 679.1288708004.

The spelling of 313225117 in words is "three hundred thirteen million, two hundred twenty-five thousand, one hundred seventeen".