204534541 has 2 divisors, whose sum is σ = 204534542. Its totient is φ = 204534540.

The previous prime is 204534523. The next prime is 204534569. The reversal of 204534541 is 145435402.

It is an a-pointer prime, because the next prime (204534569) can be obtained adding 204534541 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 107433225 + 97101316 = 10365^2 + 9854^2 .

It is a cyclic number.

It is not a de Polignac number, because 204534541 - 2⁵ = 204534509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204534511) 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, 102267270 + 102267271.

It is an arithmetic number, because the mean of its divisors is an integer number (102267271).

Almost surely, 2^204534541 is an apocalyptic number.

It is an amenable number.

204534541 is a deficient number, since it is larger than the sum of its proper divisors (1).

204534541 is an equidigital number, since it uses as much as digits as its factorization.

204534541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 204534541 is about 14301.5572928265. The cubic root of 204534541 is about 589.1902527613.

Adding to 204534541 its reverse (145435402), we get a palindrome (349969943).

The spelling of 204534541 in words is "two hundred four million, five hundred thirty-four thousand, five hundred forty-one".