204742541 has 2 divisors, whose sum is σ = 204742542. Its totient is φ = 204742540.

The previous prime is 204742519. The next prime is 204742583. The reversal of 204742541 is 145247402.

204742541 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 181980100 + 22762441 = 13490^2 + 4771^2 .

It is a cyclic number.

It is not a de Polignac number, because 204742541 - 2⁶ = 204742477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204742511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102371270 + 102371271.

It is an arithmetic number, because the mean of its divisors is an integer number (102371271).

Almost surely, 2^204742541 is an apocalyptic number.

It is an amenable number.

204742541 is a deficient number, since it is larger than the sum of its proper divisors (1).

204742541 is an equidigital number, since it uses as much as digits as its factorization.

204742541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8960, while the sum is 29.

The square root of 204742541 is about 14308.8273803272. The cubic root of 204742541 is about 589.3899094269.

Adding to 204742541 its reverse (145247402), we get a palindrome (349989943).

The spelling of 204742541 in words is "two hundred four million, seven hundred forty-two thousand, five hundred forty-one".