117399218 has 8 divisors (see below), whose sum is σ = 176518380. Its totient is φ = 58559760.

The previous prime is 117399211. The next prime is 117399299. The reversal of 117399218 is 812993711.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 78623689 + 38775529 = 8867^2 + 6227^2 .

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

It is not an unprimeable number, because it can be changed into a prime (117399211) 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 3 ways as a sum of consecutive naturals, for example, 68873 + ... + 70556.

Almost surely, 2^117399218 is an apocalyptic number.

117399218 is a deficient number, since it is larger than the sum of its proper divisors (59119162).

117399218 is a wasteful number, since it uses less digits than its factorization.

117399218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139852.

The product of its digits is 27216, while the sum is 41.

The square root of 117399218 is about 10835.0919700758. The cubic root of 117399218 is about 489.6529793412.

The spelling of 117399218 in words is "one hundred seventeen million, three hundred ninety-nine thousand, two hundred eighteen".