313221225 has 12 divisors (see below), whose sum is σ = 517859216. Its totient is φ = 167051280.

The previous prime is 313221203. The next prime is 313221253. The reversal of 313221225 is 522122313.

It is not a de Polignac number, because 313221225 - 2¹⁴ = 313204841 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 2088067 + ... + 2088216.

Almost surely, 2^313221225 is an apocalyptic number.

It is an amenable number.

313221225 is a deficient number, since it is larger than the sum of its proper divisors (204637991).

313221225 is a wasteful number, since it uses less digits than its factorization.

313221225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4176296 (or 4176291 counting only the distinct ones).

The product of its digits is 720, while the sum is 21.

The square root of 313221225 is about 17698.0570967550. The cubic root of 313221225 is about 679.1260579347.

Adding to 313221225 its reverse (522122313), we get a palindrome (835343538).

The spelling of 313221225 in words is "three hundred thirteen million, two hundred twenty-one thousand, two hundred twenty-five".