313135644 has 12 divisors (see below), whose sum is σ = 730649864. Its totient is φ = 104378544.

The previous prime is 313135577. The next prime is 313135651. The reversal of 313135644 is 446531313.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13047307 + ... + 13047330.

Almost surely, 2^313135644 is an apocalyptic number.

It is an amenable number.

313135644 is an abundant number, since it is smaller than the sum of its proper divisors (417514220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

313135644 is a wasteful number, since it uses less digits than its factorization.

313135644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26094644 (or 26094642 counting only the distinct ones).

The product of its digits is 12960, while the sum is 30.

The square root of 313135644 is about 17695.6391238067. The cubic root of 313135644 is about 679.0642000776.

Adding to 313135644 its reverse (446531313), we get a palindrome (759666957).

The spelling of 313135644 in words is "three hundred thirteen million, one hundred thirty-five thousand, six hundred forty-four".