118017 has 20 divisors (see below), whose sum is σ = 185856. Its totient is φ = 74520.

The previous prime is 117991. The next prime is 118033. The reversal of 118017 is 710811.

Added to its reverse (710811) it gives a triangular number (828828 = T₁₂₈₇).

It is not a de Polignac number, because 118017 - 2⁷ = 117889 is a prime.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (118037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2488 + ... + 2534.

2¹¹⁸⁰¹⁷ is an apocalyptic number.

It is an amenable number.

118017 is a deficient number, since it is larger than the sum of its proper divisors (67839).

118017 is an equidigital number, since it uses as much as digits as its factorization.

118017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90 (or 81 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 18.

The square root of 118017 is about 343.5360243119. The cubic root of 118017 is about 49.0510366473.

Adding to 118017 its reverse (710811), we get a palindrome (828828).

The spelling of 118017 in words is "one hundred eighteen thousand, seventeen".