204081 has 8 divisors (see below), whose sum is σ = 276960. Its totient is φ = 133632.

The previous prime is 204067. The next prime is 204101. The reversal of 204081 is 180402.

204081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 204081 - 2⁷ = 203953 is a prime.

It is a super-2 number, since 2×204081² = 83298109122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 204081.

It is not an unprimeable number, because it can be changed into a prime (204481) 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, 400 + ... + 753.

It is an arithmetic number, because the mean of its divisors is an integer number (34620).

2²⁰⁴⁰⁸¹ is an apocalyptic number.

It is an amenable number.

204081 is a deficient number, since it is larger than the sum of its proper divisors (72879).

204081 is a wasteful number, since it uses less digits than its factorization.

204081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1215.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 204081 is about 451.7532512335. The cubic root of 204081 is about 58.8754434449.

Adding to 204081 its reverse (180402), we get a palindrome (384483).

The spelling of 204081 in words is "two hundred four thousand, eighty-one".