117223885 has 4 divisors (see below), whose sum is σ = 140668668. Its totient is φ = 93779104.

The previous prime is 117223877. The next prime is 117223889. The reversal of 117223885 is 588322711.

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

It can be written as a sum of positive squares in 2 ways, for example, as 40678884 + 76545001 = 6378^2 + 8749^2 .

It is a cyclic number.

It is not a de Polignac number, because 117223885 - 2³ = 117223877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117223889) 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 3 ways as a sum of consecutive naturals, for example, 11722384 + ... + 11722393.

It is an arithmetic number, because the mean of its divisors is an integer number (35167167).

Almost surely, 2^117223885 is an apocalyptic number.

It is an amenable number.

117223885 is a deficient number, since it is larger than the sum of its proper divisors (23444783).

117223885 is an equidigital number, since it uses as much as digits as its factorization.

117223885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23444782.

The product of its digits is 26880, while the sum is 37.

The square root of 117223885 is about 10826.9979680427. The cubic root of 117223885 is about 489.4090961131.

The spelling of 117223885 in words is "one hundred seventeen million, two hundred twenty-three thousand, eight hundred eighty-five".