188001 has 20 divisors (see below), whose sum is σ = 307824. Its totient is φ = 113400.

The previous prime is 187987. The next prime is 188011. The reversal of 188001 is 100881.

It is a happy number.

It is not a de Polignac number, because 188001 - 2¹⁴ = 171617 is a prime.

It is a Smith number, since the sum of its digits (18) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

188001 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (188011) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 786 + ... + 996.

2¹⁸⁸⁰⁰¹ is an apocalyptic number.

188001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

188001 is a deficient number, since it is larger than the sum of its proper divisors (119823).

188001 is a wasteful number, since it uses less digits than its factorization.

188001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234 (or 225 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

The square root of 188001 is about 433.5908209361. The cubic root of 188001 is about 57.2866447315.

Adding to 188001 its reverse (100881), we get a palindrome (288882).

The spelling of 188001 in words is "one hundred eighty-eight thousand, one".