117185305 has 8 divisors (see below), whose sum is σ = 140738112. Its totient is φ = 93671088.

The previous prime is 117185303. The next prime is 117185333. The reversal of 117185305 is 503581711.

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

It is a cyclic number.

It is not a de Polignac number, because 117185305 - 2¹ = 117185303 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117185303) 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, 2479 + ... + 15508.

It is an arithmetic number, because the mean of its divisors is an integer number (17592264).

Almost surely, 2^117185305 is an apocalyptic number.

It is an amenable number.

117185305 is a deficient number, since it is larger than the sum of its proper divisors (23552807).

117185305 is a wasteful number, since it uses less digits than its factorization.

117185305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19295.

The product of its (nonzero) digits is 4200, while the sum is 31.

The square root of 117185305 is about 10825.2161641235. The cubic root of 117185305 is about 489.3553997903.

The spelling of 117185305 in words is "one hundred seventeen million, one hundred eighty-five thousand, three hundred five".