313105225 has 12 divisors (see below), whose sum is σ = 391815820. Its totient is φ = 248184000.

The previous prime is 313105223. The next prime is 313105241. The reversal of 313105225 is 522501313.

It can be written as a sum of positive squares in 6 ways, for example, as 46076944 + 267028281 = 6788^2 + 16341^2 .

It is not a de Polignac number, because 313105225 - 2¹ = 313105223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 313105196 and 313105205.

It is not an unprimeable number, because it can be changed into a prime (313105223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54726 + ... + 60175.

Almost surely, 2^313105225 is an apocalyptic number.

It is an amenable number.

313105225 is a deficient number, since it is larger than the sum of its proper divisors (78710595).

313105225 is a wasteful number, since it uses less digits than its factorization.

313105225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115020 (or 115015 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 313105225 is about 17694.7795973841. The cubic root of 313105225 is about 679.0422105413.

Adding to 313105225 its reverse (522501313), we get a palindrome (835606538).

The spelling of 313105225 in words is "three hundred thirteen million, one hundred five thousand, two hundred twenty-five".