204241001 has 2 divisors, whose sum is σ = 204241002. Its totient is φ = 204241000.

The previous prime is 204240983. The next prime is 204241003. The reversal of 204241001 is 100142402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 204061225 + 179776 = 14285^2 + 424^2 .

It is a cyclic number.

It is not a de Polignac number, because 204241001 - 2²² = 200046697 is a prime.

Together with 204241003, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (204241003) 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, 102120500 + 102120501.

It is an arithmetic number, because the mean of its divisors is an integer number (102120501).

Almost surely, 2^204241001 is an apocalyptic number.

It is an amenable number.

204241001 is a deficient number, since it is larger than the sum of its proper divisors (1).

204241001 is an equidigital number, since it uses as much as digits as its factorization.

204241001 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 204241001 is about 14291.2910893313. The cubic root of 204241001 is about 588.9082568541.

Adding to 204241001 its reverse (100142402), we get a palindrome (304383403).

The spelling of 204241001 in words is "two hundred four million, two hundred forty-one thousand, one".