117275789 has 2 divisors, whose sum is σ = 117275790. Its totient is φ = 117275788.

The previous prime is 117275773. The next prime is 117275791. The reversal of 117275789 is 987572711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82264900 + 35010889 = 9070^2 + 5917^2 .

It is a cyclic number.

It is not a de Polignac number, because 117275789 - 2⁴ = 117275773 is a prime.

It is a super-2 number, since 2×117275789² = 27507221371145042, which contains 22 as substring.

Together with 117275791, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117275189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58637894 + 58637895.

It is an arithmetic number, because the mean of its divisors is an integer number (58637895).

Almost surely, 2^117275789 is an apocalyptic number.

It is an amenable number.

117275789 is a deficient number, since it is larger than the sum of its proper divisors (1).

117275789 is an equidigital number, since it uses as much as digits as its factorization.

117275789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 246960, while the sum is 47.

The square root of 117275789 is about 10829.3946737572. The cubic root of 117275789 is about 489.4813184293.

The spelling of 117275789 in words is "one hundred seventeen million, two hundred seventy-five thousand, seven hundred eighty-nine".