117955819 has 8 divisors (see below), whose sum is σ = 124395840. Its totient is φ = 111539016.

The previous prime is 117955801. The next prime is 117955829. The reversal of 117955819 is 918559711.

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 117955819 - 2⁵ = 117955787 is a prime.

It is a super-2 number, since 2×117955819² = 27827150471921522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117955829) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 5184 + ... + 16210.

It is an arithmetic number, because the mean of its divisors is an integer number (15549480).

Almost surely, 2^117955819 is an apocalyptic number.

117955819 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

117955819 is a deficient number, since it is larger than the sum of its proper divisors (6440021).

117955819 is a wasteful number, since it uses less digits than its factorization.

117955819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11609.

The product of its digits is 113400, while the sum is 46.

The square root of 117955819 is about 10860.7467054526. The cubic root of 117955819 is about 490.4255902626.

The spelling of 117955819 in words is "one hundred seventeen million, nine hundred fifty-five thousand, eight hundred nineteen".