205002443 has 2 divisors, whose sum is σ = 205002444. Its totient is φ = 205002442.

The previous prime is 205002407. The next prime is 205002461. The reversal of 205002443 is 344200502.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 205002443 - 2¹² = 204998347 is a prime.

It is not a weakly prime, because it can be changed into another prime (205002043) 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, 102501221 + 102501222.

It is an arithmetic number, because the mean of its divisors is an integer number (102501222).

Almost surely, 2^205002443 is an apocalyptic number.

205002443 is a deficient number, since it is larger than the sum of its proper divisors (1).

205002443 is an equidigital number, since it uses as much as digits as its factorization.

205002443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 205002443 is about 14317.9063762828. The cubic root of 205002443 is about 589.6391962362.

Adding to 205002443 its reverse (344200502), we get a palindrome (549202945).

The spelling of 205002443 in words is "two hundred five million, two thousand, four hundred forty-three".