204601 has 2 divisors, whose sum is σ = 204602. Its totient is φ = 204600.

The previous prime is 204599. The next prime is 204613. The reversal of 204601 is 106402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 189225 + 15376 = 435^2 + 124^2 .

It is a cyclic number.

It is not a de Polignac number, because 204601 - 2¹ = 204599 is a prime.

Together with 204599, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102300 + 102301.

It is an arithmetic number, because the mean of its divisors is an integer number (102301).

2²⁰⁴⁶⁰¹ is an apocalyptic number.

It is an amenable number.

204601 is a deficient number, since it is larger than the sum of its proper divisors (1).

204601 is an equidigital number, since it uses as much as digits as its factorization.

204601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 204601 is about 452.3284205088. The cubic root of 204601 is about 58.9254060655.

The spelling of 204601 in words is "two hundred four thousand, six hundred one".