117848187 has 6 divisors (see below), whose sum is σ = 170225172. Its totient is φ = 78565452.

The previous prime is 117848183. The next prime is 117848191. The reversal of 117848187 is 781848711.

It is an interprime number because it is at equal distance from previous prime (117848183) and next prime (117848191).

It is not a de Polignac number, because 117848187 - 2² = 117848183 is a prime.

It is not an unprimeable number, because it can be changed into a prime (117848183) 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, 6547113 + ... + 6547130.

It is an arithmetic number, because the mean of its divisors is an integer number (28370862).

Almost surely, 2^117848187 is an apocalyptic number.

117848187 is a deficient number, since it is larger than the sum of its proper divisors (52376985).

117848187 is a wasteful number, since it uses less digits than its factorization.

117848187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13094249 (or 13094246 counting only the distinct ones).

The product of its digits is 100352, while the sum is 45.

The square root of 117848187 is about 10855.7904825029. The cubic root of 117848187 is about 490.2763774728.

The spelling of 117848187 in words is "one hundred seventeen million, eight hundred forty-eight thousand, one hundred eighty-seven".