117812158 has 8 divisors (see below), whose sum is σ = 176961528. Its totient is φ = 58824984.

The previous prime is 117812153. The next prime is 117812207. The reversal of 117812158 is 851218711.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117812153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38716 + ... + 41647.

It is an arithmetic number, because the mean of its divisors is an integer number (22120191).

Almost surely, 2^117812158 is an apocalyptic number.

117812158 is a deficient number, since it is larger than the sum of its proper divisors (59149370).

117812158 is an equidigital number, since it uses as much as digits as its factorization.

117812158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81098.

The product of its digits is 4480, while the sum is 34.

The square root of 117812158 is about 10854.1309186871. The cubic root of 117812158 is about 490.2264093218.

The spelling of 117812158 in words is "one hundred seventeen million, eight hundred twelve thousand, one hundred fifty-eight".