204214541 has 2 divisors, whose sum is σ = 204214542. Its totient is φ = 204214540.

The previous prime is 204214511. The next prime is 204214547. The reversal of 204214541 is 145412402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 186186025 + 18028516 = 13645^2 + 4246^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204214541 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204214547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102107270 + 102107271.

It is an arithmetic number, because the mean of its divisors is an integer number (102107271).

Almost surely, 2^204214541 is an apocalyptic number.

It is an amenable number.

204214541 is a deficient number, since it is larger than the sum of its proper divisors (1).

204214541 is an equidigital number, since it uses as much as digits as its factorization.

204214541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 204214541 is about 14290.3653207327. The cubic root of 204214541 is about 588.8828241784.

Adding to 204214541 its reverse (145412402), we get a palindrome (349626943).

The spelling of 204214541 in words is "two hundred four million, two hundred fourteen thousand, five hundred forty-one".