117900418 has 4 divisors (see below), whose sum is σ = 176850630. Its totient is φ = 58950208.

The previous prime is 117900407. The next prime is 117900439. The reversal of 117900418 is 814009711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 814009711 = 109 ⋅7467979.

It can be written as a sum of positive squares in only one way, i.e., 89245809 + 28654609 = 9447^2 + 5353^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 117900418.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29475103 + ... + 29475106.

Almost surely, 2^117900418 is an apocalyptic number.

117900418 is a deficient number, since it is larger than the sum of its proper divisors (58950212).

117900418 is an equidigital number, since it uses as much as digits as its factorization.

117900418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58950211.

The product of its (nonzero) digits is 2016, while the sum is 31.

The square root of 117900418 is about 10858.1958906625. The cubic root of 117900418 is about 490.3487978862.

The spelling of 117900418 in words is "one hundred seventeen million, nine hundred thousand, four hundred eighteen".