206066513 has 2 divisors, whose sum is σ = 206066514. Its totient is φ = 206066512.

The previous prime is 206066467. The next prime is 206066519. The reversal of 206066513 is 315660602.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 197346304 + 8720209 = 14048^2 + 2953^2 .

It is a cyclic number.

It is not a de Polignac number, because 206066513 - 2²⁶ = 138957649 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (206066519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103033256 + 103033257.

It is an arithmetic number, because the mean of its divisors is an integer number (103033257).

Almost surely, 2^206066513 is an apocalyptic number.

It is an amenable number.

206066513 is a deficient number, since it is larger than the sum of its proper divisors (1).

206066513 is an equidigital number, since it uses as much as digits as its factorization.

206066513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 206066513 is about 14355.0169975518. The cubic root of 206066513 is about 590.6576149249.

The spelling of 206066513 in words is "two hundred six million, sixty-six thousand, five hundred thirteen".