204204101 has 2 divisors, whose sum is σ = 204204102. Its totient is φ = 204204100.

The previous prime is 204204089. The next prime is 204204103. The reversal of 204204101 is 101402402.

It is a Cunningham number, because it is equal to 14290²+1.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 204204100 + 1 = 14290^2 + 1^2 .

It is a cyclic number.

It is not a de Polignac number, because 204204101 - 2¹⁴ = 204187717 is a prime.

Together with 204204103, 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 (204204103) 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, 102102050 + 102102051.

It is an arithmetic number, because the mean of its divisors is an integer number (102102051).

Almost surely, 2^204204101 is an apocalyptic number.

It is an amenable number.

204204101 is a deficient number, since it is larger than the sum of its proper divisors (1).

204204101 is an equidigital number, since it uses as much as digits as its factorization.

204204101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 204204101 is about 14290.0000349895. Note that the first 4 decimals coincide. The cubic root of 204204101 is about 588.8727889128.

Adding to 204204101 its reverse (101402402), we get a palindrome (305606503).

The spelling of 204204101 in words is "two hundred four million, two hundred four thousand, one hundred one".