313643225 has 12 divisors (see below), whose sum is σ = 444477504. Its totient is φ = 215069520.

The previous prime is 313643221. The next prime is 313643227. The reversal of 313643225 is 522346313.

It is not a de Polignac number, because 313643225 - 2² = 313643221 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313643221) 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, 895949 + ... + 896298.

It is an arithmetic number, because the mean of its divisors is an integer number (37039792).

Almost surely, 2^313643225 is an apocalyptic number.

313643225 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

313643225 is a deficient number, since it is larger than the sum of its proper divisors (130834279).

313643225 is a wasteful number, since it uses less digits than its factorization.

313643225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1792264 (or 1792259 counting only the distinct ones).

The product of its digits is 12960, while the sum is 29.

The square root of 313643225 is about 17709.9752964255. The cubic root of 313643225 is about 679.4309144415.

Adding to 313643225 its reverse (522346313), we get a palindrome (835989538).

The spelling of 313643225 in words is "three hundred thirteen million, six hundred forty-three thousand, two hundred twenty-five".