117218173 has 8 divisors (see below), whose sum is σ = 117948800. Its totient is φ = 116490528.

The previous prime is 117218147. The next prime is 117218197. The reversal of 117218173 is 371812711.

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 117218173 - 2²¹ = 115121021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117218873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189058 + ... + 189676.

It is an arithmetic number, because the mean of its divisors is an integer number (14743600).

Almost surely, 2^117218173 is an apocalyptic number.

It is an amenable number.

117218173 is a deficient number, since it is larger than the sum of its proper divisors (730627).

117218173 is an equidigital number, since it uses as much as digits as its factorization.

117218173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1491.

The product of its digits is 2352, while the sum is 31.

The square root of 117218173 is about 10826.7341797977. The cubic root of 117218173 is about 489.4011467941.

The spelling of 117218173 in words is "one hundred seventeen million, two hundred eighteen thousand, one hundred seventy-three".