117508117 has 6 divisors (see below), whose sum is σ = 119537078. Its totient is φ = 115513032.

The previous prime is 117508093. The next prime is 117508129. The reversal of 117508117 is 711805711.

It can be written as a sum of positive squares in only one way, i.e., 105390756 + 12117361 = 10266^2 + 3481^2 .

It is a de Polignac number, because none of the positive numbers 2^k-117508117 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 (117508177) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13398 + ... + 20359.

Almost surely, 2^117508117 is an apocalyptic number.

It is an amenable number.

117508117 is a deficient number, since it is larger than the sum of its proper divisors (2028961).

117508117 is an frugal number, since it uses more digits than its factorization.

117508117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33875 (or 33816 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 31.

The square root of 117508117 is about 10840.1160971643. The cubic root of 117508117 is about 489.8043325384.

The spelling of 117508117 in words is "one hundred seventeen million, five hundred eight thousand, one hundred seventeen".