117175187 has 2 divisors, whose sum is σ = 117175188. Its totient is φ = 117175186.

The previous prime is 117175111. The next prime is 117175207. The reversal of 117175187 is 781571711.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 117175187 - 2¹⁰ = 117174163 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 117175187.

It is not a weakly prime, because it can be changed into another prime (117175687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58587593 + 58587594.

It is an arithmetic number, because the mean of its divisors is an integer number (58587594).

Almost surely, 2^117175187 is an apocalyptic number.

117175187 is a deficient number, since it is larger than the sum of its proper divisors (1).

117175187 is an equidigital number, since it uses as much as digits as its factorization.

117175187 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13720, while the sum is 38.

The square root of 117175187 is about 10824.7488192567. The cubic root of 117175187 is about 489.3413154293.

The spelling of 117175187 in words is "one hundred seventeen million, one hundred seventy-five thousand, one hundred eighty-seven".