118506 has 8 divisors (see below), whose sum is σ = 237024. Its totient is φ = 39500.

The previous prime is 118493. The next prime is 118529. The reversal of 118506 is 605811.

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

118506 is an admirable number.

It is an Ulam number.

It is a congruent number.

It is an unprimeable 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 3 ways as a sum of consecutive naturals, for example, 9870 + ... + 9881.

It is an arithmetic number, because the mean of its divisors is an integer number (29628).

2¹¹⁸⁵⁰⁶ is an apocalyptic number.

118506 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

118506 is a wasteful number, since it uses less digits than its factorization.

118506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19756.

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 118506 is about 344.2470043443. The cubic root of 118506 is about 49.1186904729.

The spelling of 118506 in words is "one hundred eighteen thousand, five hundred six".