205013143 has 2 divisors, whose sum is σ = 205013144. Its totient is φ = 205013142.

The previous prime is 205013119. The next prime is 205013167. The reversal of 205013143 is 341310502.

It is a balanced prime because it is at equal distance from previous prime (205013119) and next prime (205013167).

It is a cyclic number.

It is not a de Polignac number, because 205013143 - 2⁵ = 205013111 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 205013143.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (205013113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102506571 + 102506572.

It is an arithmetic number, because the mean of its divisors is an integer number (102506572).

Almost surely, 2^205013143 is an apocalyptic number.

205013143 is a deficient number, since it is larger than the sum of its proper divisors (1).

205013143 is an equidigital number, since it uses as much as digits as its factorization.

205013143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 205013143 is about 14318.2800293890. The cubic root of 205013143 is about 589.6494546988.

Adding to 205013143 its reverse (341310502), we get a palindrome (546323645).

The spelling of 205013143 in words is "two hundred five million, thirteen thousand, one hundred forty-three".