117085 has 4 divisors (see below), whose sum is σ = 140508. Its totient is φ = 93664.

The previous prime is 117071. The next prime is 117101. The reversal of 117085 is 580711.

117085 = T₁₄₈ + T₁₄₉ + ... + T₁₅₇.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 45796 + 71289 = 214^2 + 267^2 .

It is a cyclic number.

It is not a de Polignac number, because 117085 - 2⁵ = 117053 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11704 + ... + 11713.

It is an arithmetic number, because the mean of its divisors is an integer number (35127).

2¹¹⁷⁰⁸⁵ is an apocalyptic number.

It is an amenable number.

117085 is a deficient number, since it is larger than the sum of its proper divisors (23423).

117085 is an equidigital number, since it uses as much as digits as its factorization.

117085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23422.

The product of its (nonzero) digits is 280, while the sum is 22.

The square root of 117085 is about 342.1768548573. The cubic root of 117085 is about 48.9215738352.

Adding to 117085 its reverse (580711), we get a palindrome (697796).

The spelling of 117085 in words is "one hundred seventeen thousand, eighty-five".