313101225 has 18 divisors (see below), whose sum is σ = 560799486. Its totient is φ = 166987200.

The previous prime is 313101181. The next prime is 313101293. The reversal of 313101225 is 522101313.

It can be written as a sum of positive squares in 3 ways, for example, as 57517056 + 255584169 = 7584^2 + 15987^2 .

It is not a de Polignac number, because 313101225 - 2⁷ = 313101097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 313101198 and 313101207.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 695556 + ... + 696005.

It is an arithmetic number, because the mean of its divisors is an integer number (31155527).

Almost surely, 2^313101225 is an apocalyptic number.

It is an amenable number.

313101225 is a deficient number, since it is larger than the sum of its proper divisors (247698261).

313101225 is a wasteful number, since it uses less digits than its factorization.

313101225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1391577 (or 1391569 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 313101225 is about 17694.6665693366. Note that the first 3 decimals coincide. The cubic root of 313101225 is about 679.0393188825.

Adding to 313101225 its reverse (522101313), we get a palindrome (835202538).

The spelling of 313101225 in words is "three hundred thirteen million, one hundred one thousand, two hundred twenty-five".