118558 has 16 divisors (see below), whose sum is σ = 206064. Its totient is φ = 50560.

The previous prime is 118549. The next prime is 118571. The reversal of 118558 is 855811.

It is a congruent number.

It is an unprimeable number.

118558 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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, 216 + ... + 532.

It is an arithmetic number, because the mean of its divisors is an integer number (12879).

2¹¹⁸⁵⁵⁸ is an apocalyptic number.

118558 is a deficient number, since it is larger than the sum of its proper divisors (87506).

118558 is a wasteful number, since it uses less digits than its factorization.

118558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347.

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

The square root of 118558 is about 344.3225232250. The cubic root of 118558 is about 49.1258737896.

It can be divided in two parts, 118 and 558, that added together give a palindrome (676).

The spelling of 118558 in words is "one hundred eighteen thousand, five hundred fifty-eight".