206204513 has 2 divisors, whose sum is σ = 206204514. Its totient is φ = 206204512.

The previous prime is 206204501. The next prime is 206204533. The reversal of 206204513 is 315402602.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118744609 + 87459904 = 10897^2 + 9352^2 .

It is a cyclic number.

It is not a de Polignac number, because 206204513 - 2⁴ = 206204497 is a prime.

It is not a weakly prime, because it can be changed into another prime (206204533) 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, 103102256 + 103102257.

It is an arithmetic number, because the mean of its divisors is an integer number (103102257).

Almost surely, 2^206204513 is an apocalyptic number.

It is an amenable number.

206204513 is a deficient number, since it is larger than the sum of its proper divisors (1).

206204513 is an equidigital number, since it uses as much as digits as its factorization.

206204513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 206204513 is about 14359.8228749522. The cubic root of 206204513 is about 590.7894373494.

The spelling of 206204513 in words is "two hundred six million, two hundred four thousand, five hundred thirteen".