204000604453 has 2 divisors, whose sum is σ = 204000604454. Its totient is φ = 204000604452.

The previous prime is 204000604373. The next prime is 204000604463. The reversal of 204000604453 is 354406000402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120105219844 + 83895384609 = 346562^2 + 289647^2 .

It is a cyclic number.

It is not a de Polignac number, because 204000604453 - 2⁹ = 204000603941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204000604463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102000302226 + 102000302227.

It is an arithmetic number, because the mean of its divisors is an integer number (102000302227).

Almost surely, 2^204000604453 is an apocalyptic number.

It is an amenable number.

204000604453 is a deficient number, since it is larger than the sum of its proper divisors (1).

204000604453 is an equidigital number, since it uses as much as digits as its factorization.

204000604453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 28.

Adding to 204000604453 its reverse (354406000402), we get a palindrome (558406604855).

The spelling of 204000604453 in words is "two hundred four billion, six hundred four thousand, four hundred fifty-three".