117182805 has 16 divisors (see below), whose sum is σ = 187669440. Its totient is φ = 62438528.

The previous prime is 117182801. The next prime is 117182831. The reversal of 117182805 is 508281711.

It is a cyclic number.

It is not a de Polignac number, because 117182805 - 2² = 117182801 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117182801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16201 + ... + 22289.

It is an arithmetic number, because the mean of its divisors is an integer number (11729340).

Almost surely, 2^117182805 is an apocalyptic number.

117182805 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

117182805 is a deficient number, since it is larger than the sum of its proper divisors (70486635).

117182805 is a wasteful number, since it uses less digits than its factorization.

117182805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7380.

The product of its (nonzero) digits is 4480, while the sum is 33.

The square root of 117182805 is about 10825.1006923723. The cubic root of 117182805 is about 489.3519198398.

The spelling of 117182805 in words is "one hundred seventeen million, one hundred eighty-two thousand, eight hundred five".