117668539 has 8 divisors (see below), whose sum is σ = 125066240. Its totient is φ = 110391336.

The previous prime is 117668531. The next prime is 117668561. The reversal of 117668539 is 935866711.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 117668539 - 2³ = 117668531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117668531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28107 + ... + 32020.

It is an arithmetic number, because the mean of its divisors is an integer number (15633280).

Almost surely, 2^117668539 is an apocalyptic number.

117668539 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

117668539 is a deficient number, since it is larger than the sum of its proper divisors (7397701).

117668539 is a wasteful number, since it uses less digits than its factorization.

117668539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60249.

The product of its digits is 272160, while the sum is 46.

The square root of 117668539 is about 10847.5130329491. The cubic root of 117668539 is about 490.0271246959.

It can be divided in two parts, 1 and 17668539, that added together give a triangular number (17668540 = T₅₉₄₄).

The spelling of 117668539 in words is "one hundred seventeen million, six hundred sixty-eight thousand, five hundred thirty-nine".