311639107 has 8 divisors (see below), whose sum is σ = 339383520. Its totient is φ = 284433600.

The previous prime is 311639089. The next prime is 311639113. The reversal of 311639107 is 701936113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 311639107 - 2⁷ = 311638979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311639137) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 133519 + ... + 135832.

It is an arithmetic number, because the mean of its divisors is an integer number (42422940).

Almost surely, 2^311639107 is an apocalyptic number.

311639107 is a deficient number, since it is larger than the sum of its proper divisors (27744413).

311639107 is a wasteful number, since it uses less digits than its factorization.

311639107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269453.

The product of its (nonzero) digits is 3402, while the sum is 31.

The square root of 311639107 is about 17653.3030053868. The cubic root of 311639107 is about 677.9806782055.

The spelling of 311639107 in words is "three hundred eleven million, six hundred thirty-nine thousand, one hundred seven".