313138648 has 32 divisors (see below), whose sum is σ = 605248560. Its totient is φ = 151787520.

The previous prime is 313138633. The next prime is 313138649. The reversal of 313138648 is 846831313.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313138649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50536 + ... + 56392.

Almost surely, 2^313138648 is an apocalyptic number.

It is an amenable number.

313138648 is a deficient number, since it is larger than the sum of its proper divisors (292109912).

313138648 is a wasteful number, since it uses less digits than its factorization.

313138648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6067 (or 6063 counting only the distinct ones).

The product of its digits is 41472, while the sum is 37.

The square root of 313138648 is about 17695.7240032727. The cubic root of 313138648 is about 679.0663715565.

The spelling of 313138648 in words is "three hundred thirteen million, one hundred thirty-eight thousand, six hundred forty-eight".