209000063 has 2 divisors, whose sum is σ = 209000064. Its totient is φ = 209000062.

The previous prime is 209000039. The next prime is 209000069. The reversal of 209000063 is 360000902.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 209000063 - 2¹⁰ = 208999039 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 208999999 and 209000044.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (209000069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104500031 + 104500032.

It is an arithmetic number, because the mean of its divisors is an integer number (104500032).

Almost surely, 2^209000063 is an apocalyptic number.

209000063 is a deficient number, since it is larger than the sum of its proper divisors (1).

209000063 is an equidigital number, since it uses as much as digits as its factorization.

209000063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 209000063 is about 14456.8344737014. The cubic root of 209000063 is about 593.4472736687.

Adding to 209000063 its reverse (360000902), we get a palindrome (569000965).

The spelling of 209000063 in words is "two hundred nine million, sixty-three", and thus it is an aban number.