204114661 has 2 divisors, whose sum is σ = 204114662. Its totient is φ = 204114660.

The previous prime is 204114649. The next prime is 204114671. The reversal of 204114661 is 166411402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 152992161 + 51122500 = 12369^2 + 7150^2 .

It is a cyclic number.

It is not a de Polignac number, because 204114661 - 2⁹ = 204114149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204114611) 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 as a sum of consecutive naturals, namely, 102057330 + 102057331.

It is an arithmetic number, because the mean of its divisors is an integer number (102057331).

Almost surely, 2^204114661 is an apocalyptic number.

It is an amenable number.

204114661 is a deficient number, since it is larger than the sum of its proper divisors (1).

204114661 is an equidigital number, since it uses as much as digits as its factorization.

204114661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 204114661 is about 14286.8702310898. The cubic root of 204114661 is about 588.7868022727.

The spelling of 204114661 in words is "two hundred four million, one hundred fourteen thousand, six hundred sixty-one".