118585 has 8 divisors (see below), whose sum is σ = 146376. Its totient is φ = 92160.

The previous prime is 118583. The next prime is 118589. The reversal of 118585 is 585811.

118585 = 243² + 244².

It can be written as a sum of positive squares in 4 ways, for example, as 59049 + 59536 = 243^2 + 244^2 .

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

It is not a de Polignac number, because 118585 - 2¹ = 118583 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136 + ... + 505.

It is an arithmetic number, because the mean of its divisors is an integer number (18297).

2¹¹⁸⁵⁸⁵ is an apocalyptic number.

118585 is the 244-th centered square number.

It is an amenable number.

118585 is a deficient number, since it is larger than the sum of its proper divisors (27791).

118585 is an equidigital number, since it uses as much as digits as its factorization.

118585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 683.

The product of its digits is 1600, while the sum is 28.

The square root of 118585 is about 344.3617284194. The cubic root of 118585 is about 49.1296027603.

It can be divided in two parts, 118 and 585, that added together give a triangular number (703 = T₃₇).

The spelling of 118585 in words is "one hundred eighteen thousand, five hundred eighty-five".