311134887 has 48 divisors (see below), whose sum is σ = 532160512. Its totient is φ = 171460800.

The previous prime is 311134849. The next prime is 311134891. The reversal of 311134887 is 788431113.

It is not a de Polignac number, because 311134887 - 2¹¹ = 311132839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311134807) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 295512 + ... + 296562.

Almost surely, 2^311134887 is an apocalyptic number.

311134887 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

311134887 is a deficient number, since it is larger than the sum of its proper divisors (221025625).

311134887 is a wasteful number, since it uses less digits than its factorization.

311134887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1228 (or 1225 counting only the distinct ones).

The product of its digits is 16128, while the sum is 36.

The square root of 311134887 is about 17639.0160439861. The cubic root of 311134887 is about 677.6148320037.

The spelling of 311134887 in words is "three hundred eleven million, one hundred thirty-four thousand, eight hundred eighty-seven".