200209109 has 16 divisors (see below), whose sum is σ = 211846656. Its totient is φ = 188956800.

The previous prime is 200209057. The next prime is 200209117. The reversal of 200209109 is 901902002.

It is a cyclic number.

It is not a de Polignac number, because 200209109 - 2¹² = 200205013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200209309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 410864 + ... + 411350.

It is an arithmetic number, because the mean of its divisors is an integer number (13240416).

Almost surely, 2^200209109 is an apocalyptic number.

It is an amenable number.

200209109 is a deficient number, since it is larger than the sum of its proper divisors (11637547).

200209109 is a wasteful number, since it uses less digits than its factorization.

200209109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 200209109 is about 14149.5268118761. The cubic root of 200209109 is about 585.0072894604.

The spelling of 200209109 in words is "two hundred million, two hundred nine thousand, one hundred nine".