12050209 has 8 divisors (see below), whose sum is σ = 12246120. Its totient is φ = 11856000.

The previous prime is 12050201. The next prime is 12050249. The reversal of 12050209 is 90205021.

It can be written as a sum of positive squares in 4 ways, for example, as 6630625 + 5419584 = 2575^2 + 2328^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12050209 - 2³ = 12050201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12050201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22869 + ... + 23389.

It is an arithmetic number, because the mean of its divisors is an integer number (1530765).

Almost surely, 2^12050209 is an apocalyptic number.

It is an amenable number.

12050209 is a deficient number, since it is larger than the sum of its proper divisors (195911).

12050209 is a wasteful number, since it uses less digits than its factorization.

12050209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 851.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 12050209 is about 3471.3410953117. The cubic root of 12050209 is about 229.2617095285.

The spelling of 12050209 in words is "twelve million, fifty thousand, two hundred nine".