1117975931 has 2 divisors, whose sum is σ = 1117975932. Its totient is φ = 1117975930.

The previous prime is 1117975919. The next prime is 1117975961. The reversal of 1117975931 is 1395797111.

It is a weak prime.

It is an emirp because it is prime and its reverse (1395797111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1117975931 - 2³⁰ = 44234107 is a prime.

It is a super-2 number, since 2×1117975931² = 2499740364590633522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1117975961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 558987965 + 558987966.

It is an arithmetic number, because the mean of its divisors is an integer number (558987966).

Almost surely, 2^1117975931 is an apocalyptic number.

1117975931 is a deficient number, since it is larger than the sum of its proper divisors (1).

1117975931 is an equidigital number, since it uses as much as digits as its factorization.

1117975931 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 59535, while the sum is 44.

The square root of 1117975931 is about 33436.1470716947. The cubic root of 1117975931 is about 1037.8728498983.

The spelling of 1117975931 in words is "one billion, one hundred seventeen million, nine hundred seventy-five thousand, nine hundred thirty-one".