117372555 has 24 divisors (see below), whose sum is σ = 203828352. Its totient is φ = 62481024.

The previous prime is 117372553. The next prime is 117372587. The reversal of 117372555 is 555273711.

It is a happy number.

It is not a de Polignac number, because 117372555 - 2¹ = 117372553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (117372553) 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 23 ways as a sum of consecutive naturals, for example, 25167 + ... + 29463.

It is an arithmetic number, because the mean of its divisors is an integer number (8492848).

Almost surely, 2^117372555 is an apocalyptic number.

117372555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

117372555 is a deficient number, since it is larger than the sum of its proper divisors (86455797).

117372555 is a wasteful number, since it uses less digits than its factorization.

117372555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4915 (or 4912 counting only the distinct ones).

The product of its digits is 36750, while the sum is 36.

The square root of 117372555 is about 10833.8614999454. The cubic root of 117372555 is about 489.6159075273.

The spelling of 117372555 in words is "one hundred seventeen million, three hundred seventy-two thousand, five hundred fifty-five".