118685 has 8 divisors (see below), whose sum is σ = 162816. Its totient is φ = 81360.

The previous prime is 118681. The next prime is 118687. The reversal of 118685 is 586811.

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

It is not a de Polignac number, because 118685 - 2² = 118681 is a prime.

It is a super-2 number, since 2×118685² = 28172258450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118681) 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, 1661 + ... + 1730.

It is an arithmetic number, because the mean of its divisors is an integer number (20352).

2¹¹⁸⁶⁸⁵ is an apocalyptic number.

It is an amenable number.

118685 is a deficient number, since it is larger than the sum of its proper divisors (44131).

118685 is an equidigital number, since it uses as much as digits as its factorization.

118685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3403.

The product of its digits is 1920, while the sum is 29.

The square root of 118685 is about 344.5068939804. The cubic root of 118685 is about 49.1434088345.

It can be divided in two parts, 11868 and 5, that multiplied together give a triangular number (59340 = T₃₄₄).

The spelling of 118685 in words is "one hundred eighteen thousand, six hundred eighty-five".