11441209 has 8 divisors (see below), whose sum is σ = 12349512. Its totient is φ = 10536960.

The previous prime is 11441207. The next prime is 11441239. The reversal of 11441209 is 90214411.

11441209 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 5546025 + 5895184 = 2355^2 + 2428^2 .

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 11441209 - 2¹ = 11441207 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11441209.

It is not an unprimeable number, because it can be changed into a prime (11441203) 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, 7647 + ... + 9019.

It is an arithmetic number, because the mean of its divisors is an integer number (1543689).

Almost surely, 2^11441209 is an apocalyptic number.

It is an amenable number.

11441209 is a deficient number, since it is larger than the sum of its proper divisors (908303).

11441209 is a wasteful number, since it uses less digits than its factorization.

11441209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2027.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 11441209 is about 3382.4856245075. The cubic root of 11441209 is about 225.3325715597.

The spelling of 11441209 in words is "eleven million, four hundred forty-one thousand, two hundred nine".