204300661 has 2 divisors, whose sum is σ = 204300662. Its totient is φ = 204300660.

The previous prime is 204300653. The next prime is 204300683. The reversal of 204300661 is 166003402.

204300661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (204300683) can be obtained adding 204300661 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 127825636 + 76475025 = 11306^2 + 8745^2 .

It is a cyclic number.

It is not a de Polignac number, because 204300661 - 2³ = 204300653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204300601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102150330 + 102150331.

It is an arithmetic number, because the mean of its divisors is an integer number (102150331).

Almost surely, 2^204300661 is an apocalyptic number.

It is an amenable number.

204300661 is a deficient number, since it is larger than the sum of its proper divisors (1).

204300661 is an equidigital number, since it uses as much as digits as its factorization.

204300661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 204300661 is about 14293.3782220999. The cubic root of 204300661 is about 588.9655924626.

The spelling of 204300661 in words is "two hundred four million, three hundred thousand, six hundred sixty-one".