117118555 has 4 divisors (see below), whose sum is σ = 140542272. Its totient is φ = 93694840.

The previous prime is 117118549. The next prime is 117118577. The reversal of 117118555 is 555811711.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 117118555 - 2⁵ = 117118523 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 117118555.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11711851 + ... + 11711860.

It is an arithmetic number, because the mean of its divisors is an integer number (35135568).

Almost surely, 2^117118555 is an apocalyptic number.

117118555 is a deficient number, since it is larger than the sum of its proper divisors (23423717).

117118555 is an equidigital number, since it uses as much as digits as its factorization.

117118555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23423716.

The product of its digits is 7000, while the sum is 34.

The square root of 117118555 is about 10822.1326456480. The cubic root of 117118555 is about 489.2624681242.

The spelling of 117118555 in words is "one hundred seventeen million, one hundred eighteen thousand, five hundred fifty-five".