204660101 has 2 divisors, whose sum is σ = 204660102. Its totient is φ = 204660100.

The previous prime is 204660089. The next prime is 204660103. The reversal of 204660101 is 101066402.

It is a happy number.

204660101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 143976001 + 60684100 = 11999^2 + 7790^2 .

It is a cyclic number.

It is not a de Polignac number, because 204660101 - 2¹⁸ = 204397957 is a prime.

Together with 204660103, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204660103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102330050 + 102330051.

It is an arithmetic number, because the mean of its divisors is an integer number (102330051).

Almost surely, 2^204660101 is an apocalyptic number.

It is an amenable number.

204660101 is a deficient number, since it is larger than the sum of its proper divisors (1).

204660101 is an equidigital number, since it uses as much as digits as its factorization.

204660101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 204660101 is about 14305.9463510807. The cubic root of 204660101 is about 589.3107924590.

The spelling of 204660101 in words is "two hundred four million, six hundred sixty thousand, one hundred one".