117288109 has 8 divisors (see below), whose sum is σ = 122496192. Its totient is φ = 112089120.

The previous prime is 117288107. The next prime is 117288131. The reversal of 117288109 is 901882711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 117288109 - 2¹ = 117288107 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 (117288103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47817 + ... + 50209.

It is an arithmetic number, because the mean of its divisors is an integer number (15312024).

Almost surely, 2^117288109 is an apocalyptic number.

It is an amenable number.

117288109 is a deficient number, since it is larger than the sum of its proper divisors (5208083).

117288109 is a wasteful number, since it uses less digits than its factorization.

117288109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4547.

The product of its (nonzero) digits is 8064, while the sum is 37.

The square root of 117288109 is about 10829.9634810095. The cubic root of 117288109 is about 489.4984580814.

The spelling of 117288109 in words is "one hundred seventeen million, two hundred eighty-eight thousand, one hundred nine".