206002143 has 16 divisors (see below), whose sum is σ = 305536000. Its totient is φ = 137178360.

The previous prime is 206002129. The next prime is 206002151. The reversal of 206002143 is 341200602.

It is a happy number.

206002143 is a `hidden beast` number, since 2 + 0 + 600 + 21 + 43 = 666.

It is not a de Polignac number, because 206002143 - 2⁶ = 206002079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206002103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22908 + ... + 30606.

It is an arithmetic number, because the mean of its divisors is an integer number (19096000).

Almost surely, 2^206002143 is an apocalyptic number.

206002143 is a deficient number, since it is larger than the sum of its proper divisors (99533857).

206002143 is an equidigital number, since it uses as much as digits as its factorization.

206002143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8699 (or 8693 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 206002143 is about 14352.7747491556. The cubic root of 206002143 is about 590.5961063215.

Adding to 206002143 its reverse (341200602), we get a palindrome (547202745).

The spelling of 206002143 in words is "two hundred six million, two thousand, one hundred forty-three".