200340209 has 2 divisors, whose sum is σ = 200340210. Its totient is φ = 200340208.

The previous prime is 200340187. The next prime is 200340229. The reversal of 200340209 is 902043002.

It is an a-pointer prime, because the next prime (200340229) can be obtained adding 200340209 to its sum of digits (20).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 198246400 + 2093809 = 14080^2 + 1447^2 .

It is a cyclic number.

It is not a de Polignac number, because 200340209 - 2²⁴ = 183562993 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (200340229) 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, 100170104 + 100170105.

It is an arithmetic number, because the mean of its divisors is an integer number (100170105).

Almost surely, 2^200340209 is an apocalyptic number.

It is an amenable number.

200340209 is a deficient number, since it is larger than the sum of its proper divisors (1).

200340209 is an equidigital number, since it uses as much as digits as its factorization.

200340209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 200340209 is about 14154.1587174936. The cubic root of 200340209 is about 585.1349521858.

The spelling of 200340209 in words is "two hundred million, three hundred forty thousand, two hundred nine".