206343601 has 2 divisors, whose sum is σ = 206343602. Its totient is φ = 206343600.

The previous prime is 206343589. The next prime is 206343619. The reversal of 206343601 is 106343602.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 138297600 + 68046001 = 11760^2 + 8249^2 .

It is a cyclic number.

It is not a de Polignac number, because 206343601 - 2²⁷ = 72125873 is a prime.

It is equal to p_11410567 and since 206343601 and 11410567 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (206343661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103171800 + 103171801.

It is an arithmetic number, because the mean of its divisors is an integer number (103171801).

Almost surely, 2^206343601 is an apocalyptic number.

It is an amenable number.

206343601 is a deficient number, since it is larger than the sum of its proper divisors (1).

206343601 is an equidigital number, since it uses as much as digits as its factorization.

206343601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 206343601 is about 14364.6650152379. The cubic root of 206343601 is about 590.9222395719.

Subtracting from 206343601 its reverse (106343602), we obtain a palindrome (99999999).

The spelling of 206343601 in words is "two hundred six million, three hundred forty-three thousand, six hundred one".