117345389 has 16 divisors (see below), whose sum is σ = 138609408. Its totient is φ = 97241472.

The previous prime is 117345331. The next prime is 117345391. The reversal of 117345389 is 983543711.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117345389 is a prime.

It is a super-2 number, since 2×117345389² = 27539880639122642, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117345289) 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 15 ways as a sum of consecutive naturals, for example, 41897 + ... + 44609.

It is an arithmetic number, because the mean of its divisors is an integer number (8663088).

Almost surely, 2^117345389 is an apocalyptic number.

It is an amenable number.

117345389 is a deficient number, since it is larger than the sum of its proper divisors (21264019).

117345389 is a wasteful number, since it uses less digits than its factorization.

117345389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2924.

The product of its digits is 90720, while the sum is 41.

The square root of 117345389 is about 10832.6076731321. The cubic root of 117345389 is about 489.5781305756.

The spelling of 117345389 in words is "one hundred seventeen million, three hundred forty-five thousand, three hundred eighty-nine".