117891179 has 8 divisors (see below), whose sum is σ = 135794688. Its totient is φ = 100253160.

The previous prime is 117891173. The next prime is 117891197. The reversal of 117891179 is 971198711.

117891179 = T₂ + T₃ + ... + T₈₉₀.

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

It is not a de Polignac number, because 117891179 - 2¹² = 117887083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117891173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65417 + ... + 67194.

It is an arithmetic number, because the mean of its divisors is an integer number (16974336).

Almost surely, 2^117891179 is an apocalyptic number.

117891179 is a deficient number, since it is larger than the sum of its proper divisors (17903509).

117891179 is a wasteful number, since it uses less digits than its factorization.

117891179 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132745.

The product of its digits is 31752, while the sum is 44.

The square root of 117891179 is about 10857.7704433277. The cubic root of 117891179 is about 490.3359891929.

The spelling of 117891179 in words is "one hundred seventeen million, eight hundred ninety-one thousand, one hundred seventy-nine".