11126209 has 2 divisors, whose sum is σ = 11126210. Its totient is φ = 11126208.

The previous prime is 11126189. The next prime is 11126239. The reversal of 11126209 is 90262111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11075584 + 50625 = 3328^2 + 225^2 .

It is a cyclic number.

It is not a de Polignac number, because 11126209 - 2⁷ = 11126081 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11126209.

It is not a weakly prime, because it can be changed into another prime (11126239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5563104 + 5563105.

It is an arithmetic number, because the mean of its divisors is an integer number (5563105).

Almost surely, 2^11126209 is an apocalyptic number.

It is an amenable number.

11126209 is a deficient number, since it is larger than the sum of its proper divisors (1).

11126209 is an equidigital number, since it uses as much as digits as its factorization.

11126209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 11126209 is about 3335.5972478703. The cubic root of 11126209 is about 223.2453411932.

The spelling of 11126209 in words is "eleven million, one hundred twenty-six thousand, two hundred nine".