200081 has 8 divisors (see below), whose sum is σ = 231744. Its totient is φ = 169200.

The previous prime is 200063. The next prime is 200087. The reversal of 200081 is 180002.

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

It is a cyclic number.

It is not a de Polignac number, because 200081 - 2⁶ = 200017 is a prime.

It is a super-2 number, since 2×200081² = 80064813122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200087) 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, 566 + ... + 848.

It is an arithmetic number, because the mean of its divisors is an integer number (28968).

2²⁰⁰⁰⁸¹ is an apocalyptic number.

It is an amenable number.

200081 is a deficient number, since it is larger than the sum of its proper divisors (31663).

200081 is a wasteful number, since it uses less digits than its factorization.

200081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 200081 is about 447.3041470856. The cubic root of 200081 is about 58.4882485466.

Adding to 200081 its reverse (180002), we get a palindrome (380083).

The spelling of 200081 in words is "two hundred thousand, eighty-one".