117577509 has 24 divisors (see below), whose sum is σ = 183607488. Its totient is φ = 66729600.

The previous prime is 117577477. The next prime is 117577543. The reversal of 117577509 is 905775711.

It is a happy number.

It is not a de Polignac number, because 117577509 - 2⁵ = 117577477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117573509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19549 + ... + 24845.

It is an arithmetic number, because the mean of its divisors is an integer number (7650312).

Almost surely, 2^117577509 is an apocalyptic number.

It is an amenable number.

117577509 is a deficient number, since it is larger than the sum of its proper divisors (66029979).

117577509 is a wasteful number, since it uses less digits than its factorization.

117577509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5465 (or 5458 counting only the distinct ones).

The product of its (nonzero) digits is 77175, while the sum is 42.

The square root of 117577509 is about 10843.3163285039. The cubic root of 117577509 is about 489.9007281887.

The spelling of 117577509 in words is "one hundred seventeen million, five hundred seventy-seven thousand, five hundred nine".