20205041 has 2 divisors, whose sum is σ = 20205042. Its totient is φ = 20205040.

The previous prime is 20205023. The next prime is 20205077. The reversal of 20205041 is 14050202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20205025 + 16 = 4495^2 + 4^2 .

It is a cyclic number.

It is not a de Polignac number, because 20205041 - 2¹⁰ = 20204017 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20205001) 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, 10102520 + 10102521.

It is an arithmetic number, because the mean of its divisors is an integer number (10102521).

Almost surely, 2^20205041 is an apocalyptic number.

It is an amenable number.

20205041 is a deficient number, since it is larger than the sum of its proper divisors (1).

20205041 is an equidigital number, since it uses as much as digits as its factorization.

20205041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 20205041 is about 4495.0017797549. The cubic root of 20205041 is about 272.3662211229.

Adding to 20205041 its reverse (14050202), we get a palindrome (34255243).

The spelling of 20205041 in words is "twenty million, two hundred five thousand, forty-one".