117182145 has 32 divisors (see below), whose sum is σ = 193708800. Its totient is φ = 60445440.

The previous prime is 117182123. The next prime is 117182147. The reversal of 117182145 is 541281711.

It is not a de Polignac number, because 117182145 - 2⁹ = 117181633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (117182147) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 109915 + ... + 110975.

It is an arithmetic number, because the mean of its divisors is an integer number (6053400).

Almost surely, 2^117182145 is an apocalyptic number.

117182145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

117182145 is a deficient number, since it is larger than the sum of its proper divisors (76526655).

117182145 is a wasteful number, since it uses less digits than its factorization.

117182145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1305.

The product of its digits is 2240, while the sum is 30.

The square root of 117182145 is about 10825.0702076245. The cubic root of 117182145 is about 489.3510011246.

The spelling of 117182145 in words is "one hundred seventeen million, one hundred eighty-two thousand, one hundred forty-five".