313128907 has 16 divisors (see below), whose sum is σ = 388346112. Its totient is φ = 245849760.

The previous prime is 313128887. The next prime is 313128917. The reversal of 313128907 is 709821313.

It is not a de Polignac number, because 313128907 - 2⁷ = 313128779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (313128917) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1213 + ... + 25054.

It is an arithmetic number, because the mean of its divisors is an integer number (24271632).

Almost surely, 2^313128907 is an apocalyptic number.

313128907 is a deficient number, since it is larger than the sum of its proper divisors (75217205).

313128907 is a wasteful number, since it uses less digits than its factorization.

313128907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26418.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 313128907 is about 17695.4487651486. The cubic root of 313128907 is about 679.0593301025.

The spelling of 313128907 in words is "three hundred thirteen million, one hundred twenty-eight thousand, nine hundred seven".