117971995 has 8 divisors (see below), whose sum is σ = 142118784. Its totient is φ = 94009344.

The previous prime is 117971983. The next prime is 117972053. The reversal of 117971995 is 599179711.

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 117971995 - 2⁵ = 117971963 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44619 + ... + 47188.

It is an arithmetic number, because the mean of its divisors is an integer number (17764848).

Almost surely, 2^117971995 is an apocalyptic number.

117971995 is a deficient number, since it is larger than the sum of its proper divisors (24146789).

117971995 is an equidigital number, since it uses as much as digits as its factorization.

117971995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92069.

The product of its digits is 178605, while the sum is 49.

The square root of 117971995 is about 10861.4913801006. The cubic root of 117971995 is about 490.4480075874.

The spelling of 117971995 in words is "one hundred seventeen million, nine hundred seventy-one thousand, nine hundred ninety-five".