206530343 has 4 divisors (see below), whose sum is σ = 206640888. Its totient is φ = 206419800.

The previous prime is 206530327. The next prime is 206530349. The reversal of 206530343 is 343035602.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 206530343 - 2⁴ = 206530327 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 (206530349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52421 + ... + 56222.

It is an arithmetic number, because the mean of its divisors is an integer number (51660222).

Almost surely, 2^206530343 is an apocalyptic number.

206530343 is a deficient number, since it is larger than the sum of its proper divisors (110545).

206530343 is a wasteful number, since it uses less digits than its factorization.

206530343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110544.

The product of its (nonzero) digits is 6480, while the sum is 26.

The square root of 206530343 is about 14371.1635924166. The cubic root of 206530343 is about 591.1004483588.

Adding to 206530343 its reverse (343035602), we get a palindrome (549565945).

The spelling of 206530343 in words is "two hundred six million, five hundred thirty thousand, three hundred forty-three".