117235165 has 4 divisors (see below), whose sum is σ = 140682204. Its totient is φ = 93788128.

The previous prime is 117235141. The next prime is 117235177. The reversal of 117235165 is 561532711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 561532711 = 79 ⋅7108009.

It can be written as a sum of positive squares in 2 ways, for example, as 43309561 + 73925604 = 6581^2 + 8598^2 .

It is a cyclic number.

It is not a de Polignac number, because 117235165 - 2⁵ = 117235133 is a prime.

It is a Smith number, since the sum of its digits (31) 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, 11723512 + ... + 11723521.

It is an arithmetic number, because the mean of its divisors is an integer number (35170551).

Almost surely, 2^117235165 is an apocalyptic number.

It is an amenable number.

117235165 is a deficient number, since it is larger than the sum of its proper divisors (23447039).

117235165 is an equidigital number, since it uses as much as digits as its factorization.

117235165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23447038.

The product of its digits is 6300, while the sum is 31.

The square root of 117235165 is about 10827.5188755319. The cubic root of 117235165 is about 489.4247935896.

Adding to 117235165 its reverse (561532711), we get a palindrome (678767876).

The spelling of 117235165 in words is "one hundred seventeen million, two hundred thirty-five thousand, one hundred sixty-five".