118005 has 8 divisors (see below), whose sum is σ = 188832. Its totient is φ = 62928.

The previous prime is 117991. The next prime is 118033. The reversal of 118005 is 500811.

It is a happy number.

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

It is not a de Polignac number, because 118005 - 2⁴ = 117989 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 7867 = 118005 / (1 + 1 + 8 + 0 + 0 + 5).

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 7 ways as a sum of consecutive naturals, for example, 3919 + ... + 3948.

It is an arithmetic number, because the mean of its divisors is an integer number (23604).

2¹¹⁸⁰⁰⁵ is an apocalyptic number.

118005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

118005 is a deficient number, since it is larger than the sum of its proper divisors (70827).

118005 is an equidigital number, since it uses as much as digits as its factorization.

118005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7875.

The product of its (nonzero) digits is 40, while the sum is 15.

The square root of 118005 is about 343.5185584506. The cubic root of 118005 is about 49.0493740834.

Adding to 118005 its reverse (500811), we get a palindrome (618816).

The spelling of 118005 in words is "one hundred eighteen thousand, five".