117522389 has 4 divisors (see below), whose sum is σ = 117606060. Its totient is φ = 117438720.

The previous prime is 117522337. The next prime is 117522421. The reversal of 117522389 is 983225711.

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 25170289 + 92352100 = 5017^2 + 9610^2 .

It is a cyclic number.

It is not a de Polignac number, because 117522389 - 2⁸ = 117522133 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 (117522319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39692 + ... + 42549.

It is an arithmetic number, because the mean of its divisors is an integer number (29401515).

Almost surely, 2^117522389 is an apocalyptic number.

It is an amenable number.

117522389 is a deficient number, since it is larger than the sum of its proper divisors (83671).

117522389 is an equidigital number, since it uses as much as digits as its factorization.

117522389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83670.

The product of its digits is 30240, while the sum is 38.

The square root of 117522389 is about 10840.7743727097. The cubic root of 117522389 is about 489.8241615358.

It can be divided in two parts, 11752 and 2389, that added together give a palindrome (14141).

The spelling of 117522389 in words is "one hundred seventeen million, five hundred twenty-two thousand, three hundred eighty-nine".