118001 has 8 divisors (see below), whose sum is σ = 131880. Its totient is φ = 104832.

The previous prime is 117991. The next prime is 118033. The reversal of 118001 is 100811.

It can be written as a sum of positive squares in 4 ways, for example, as 2401 + 115600 = 49^2 + 340^2 .

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

It is not a de Polignac number, because 118001 - 2⁶ = 117937 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118051) 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, 221 + ... + 533.

It is an arithmetic number, because the mean of its divisors is an integer number (16485).

2¹¹⁸⁰⁰¹ is an apocalyptic number.

It is an amenable number.

118001 is a deficient number, since it is larger than the sum of its proper divisors (13879).

118001 is a wasteful number, since it uses less digits than its factorization.

118001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 118001 is about 343.5127362995. The cubic root of 118001 is about 49.0488198704.

Adding to 118001 its reverse (100811), we get a palindrome (218812).

The spelling of 118001 in words is "one hundred eighteen thousand, one".