311579047 has 12 divisors (see below), whose sum is σ = 348279744. Its totient is φ = 278328960.

The previous prime is 311579039. The next prime is 311579053. The reversal of 311579047 is 740975113.

It is not a de Polignac number, because 311579047 - 2³ = 311579039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 311578997 and 311579015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311579087) 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 11 ways as a sum of consecutive naturals, for example, 24498 + ... + 34975.

It is an arithmetic number, because the mean of its divisors is an integer number (29023312).

Almost surely, 2^311579047 is an apocalyptic number.

311579047 is a deficient number, since it is larger than the sum of its proper divisors (36700697).

311579047 is a wasteful number, since it uses less digits than its factorization.

311579047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59530 (or 59517 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 37.

The square root of 311579047 is about 17651.6018253302. The cubic root of 311579047 is about 677.9371212676.

It can be divided in two parts, 31157 and 9047, that added together give a palindrome (40204).

The spelling of 311579047 in words is "three hundred eleven million, five hundred seventy-nine thousand, forty-seven".