206424143 has 2 divisors, whose sum is σ = 206424144. Its totient is φ = 206424142.

The previous prime is 206424109. The next prime is 206424161. The reversal of 206424143 is 341424602.

206424143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 206424143 - 2¹⁴ = 206407759 is a prime.

It is a super-2 number, since 2×206424143² = 85221853626568898, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (206424173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103212071 + 103212072.

It is an arithmetic number, because the mean of its divisors is an integer number (103212072).

Almost surely, 2^206424143 is an apocalyptic number.

206424143 is a deficient number, since it is larger than the sum of its proper divisors (1).

206424143 is an equidigital number, since it uses as much as digits as its factorization.

206424143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 206424143 is about 14367.4682181656. The cubic root of 206424143 is about 590.9991143698. Note that the first 3 decimals are identical.

Adding to 206424143 its reverse (341424602), we get a palindrome (547848745).

The spelling of 206424143 in words is "two hundred six million, four hundred twenty-four thousand, one hundred forty-three".