313651225 has 12 divisors (see below), whose sum is σ = 391770684. Its totient is φ = 249086720.

The previous prime is 313651213. The next prime is 313651229. The reversal of 313651225 is 522156313.

It can be written as a sum of positive squares in 6 ways, for example, as 34527376 + 279123849 = 5876^2 + 16707^2 .

It is not a de Polignac number, because 313651225 - 2⁹ = 313650713 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 313651193 and 313651202.

It is not an unprimeable number, because it can be changed into a prime (313651229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42364 + ... + 49213.

It is an arithmetic number, because the mean of its divisors is an integer number (32647557).

Almost surely, 2^313651225 is an apocalyptic number.

It is an amenable number.

313651225 is a deficient number, since it is larger than the sum of its proper divisors (78119459).

313651225 is a wasteful number, since it uses less digits than its factorization.

313651225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91724 (or 91719 counting only the distinct ones).

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

The square root of 313651225 is about 17710.2011563957. The cubic root of 313651225 is about 679.4366910699.

The spelling of 313651225 in words is "three hundred thirteen million, six hundred fifty-one thousand, two hundred twenty-five".