117705091 has 8 divisors (see below), whose sum is σ = 134635520. Its totient is φ = 100803528.

The previous prime is 117705089. The next prime is 117705121. The reversal of 117705091 is 190507711.

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

It is not a de Polignac number, because 117705091 - 2¹ = 117705089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117705011) 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, 2380 + ... + 15526.

It is an arithmetic number, because the mean of its divisors is an integer number (16829440).

Almost surely, 2^117705091 is an apocalyptic number.

117705091 is a deficient number, since it is larger than the sum of its proper divisors (16930429).

117705091 is a wasteful number, since it uses less digits than its factorization.

117705091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14433.

The product of its (nonzero) digits is 2205, while the sum is 31.

The square root of 117705091 is about 10849.1977122735. The cubic root of 117705091 is about 490.0778593479.

It can be divided in two parts, 11770 and 5091, that added together give a palindrome (16861).

The spelling of 117705091 in words is "one hundred seventeen million, seven hundred five thousand, ninety-one".