204271 has 4 divisors (see below), whose sum is σ = 205200. Its totient is φ = 203344.

The previous prime is 204251. The next prime is 204299. The reversal of 204271 is 172402.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 172402 = 2 ⋅86201.

It is a cyclic number.

It is not a de Polignac number, because 204271 - 2⁷ = 204143 is a prime.

It is a Duffinian number.

204271 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75 + ... + 643.

It is an arithmetic number, because the mean of its divisors is an integer number (51300).

2²⁰⁴²⁷¹ is an apocalyptic number.

204271 is a deficient number, since it is larger than the sum of its proper divisors (929).

204271 is an equidigital number, since it uses as much as digits as its factorization.

204271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 928.

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 204271 is about 451.9634941010. The cubic root of 204271 is about 58.8937088469.

Adding to 204271 its reverse (172402), we get a palindrome (376673).

The spelling of 204271 in words is "two hundred four thousand, two hundred seventy-one", and thus it is an iban number.