311149956 has 36 divisors (see below), whose sum is σ = 786165072. Its totient is φ = 95737824.

The previous prime is 311149939. The next prime is 311149981. The reversal of 311149956 is 659941113.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74686 + ... + 78741.

Almost surely, 2^311149956 is an apocalyptic number.

It is an amenable number.

311149956 is an abundant number, since it is smaller than the sum of its proper divisors (475015116).

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

311149956 is a wasteful number, since it uses less digits than its factorization.

311149956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153460 (or 153445 counting only the distinct ones).

The product of its digits is 29160, while the sum is 39.

The square root of 311149956 is about 17639.4431884910. The cubic root of 311149956 is about 677.6257713245.

The spelling of 311149956 in words is "three hundred eleven million, one hundred forty-nine thousand, nine hundred fifty-six".