116985 has 16 divisors (see below), whose sum is σ = 204480. Its totient is φ = 56640.

The previous prime is 116981. The next prime is 116989. The reversal of 116985 is 589611.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (116981) and next prime (116989).

It is not a de Polignac number, because 116985 - 2² = 116981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 190 + ... + 519.

It is an arithmetic number, because the mean of its divisors is an integer number (12780).

2¹¹⁶⁹⁸⁵ is an apocalyptic number.

116985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

116985 is a deficient number, since it is larger than the sum of its proper divisors (87495).

116985 is a wasteful number, since it uses less digits than its factorization.

116985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728.

The product of its digits is 2160, while the sum is 30.

The square root of 116985 is about 342.0307003764. The cubic root of 116985 is about 48.9076422163.

It can be divided in two parts, 11 and 6985, that added together give a palindrome (6996).

The spelling of 116985 in words is "one hundred sixteen thousand, nine hundred eighty-five".