206543241 has 6 divisors (see below), whose sum is σ = 298340250. Its totient is φ = 137695488.

The previous prime is 206543237. The next prime is 206543261. The reversal of 206543241 is 142345602.

206543241 is a `hidden beast` number, since 2 + 0 + 654 + 3 + 2 + 4 + 1 = 666.

206543241 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 185749641 + 20793600 = 13629^2 + 4560^2 .

It is not a de Polignac number, because 206543241 - 2² = 206543237 is a prime.

It is a super-2 number, since 2×206543241² = 85320220805568162, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (206543201) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11474616 + ... + 11474633.

It is an arithmetic number, because the mean of its divisors is an integer number (49723375).

Almost surely, 2^206543241 is an apocalyptic number.

It is an amenable number.

206543241 is a deficient number, since it is larger than the sum of its proper divisors (91797009).

206543241 is a wasteful number, since it uses less digits than its factorization.

206543241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22949255 (or 22949252 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 206543241 is about 14371.6123312591. The cubic root of 206543241 is about 591.1127530155.

Adding to 206543241 its reverse (142345602), we get a palindrome (348888843).

The spelling of 206543241 in words is "two hundred six million, five hundred forty-three thousand, two hundred forty-one".