11144209 has 2 divisors, whose sum is σ = 11144210. Its totient is φ = 11144208.

The previous prime is 11144153. The next prime is 11144219. The reversal of 11144209 is 90244111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8673025 + 2471184 = 2945^2 + 1572^2 .

It is a cyclic number.

It is not a de Polignac number, because 11144209 - 2¹³ = 11136017 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11144209.

It is not a weakly prime, because it can be changed into another prime (11144219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5572104 + 5572105.

It is an arithmetic number, because the mean of its divisors is an integer number (5572105).

Almost surely, 2^11144209 is an apocalyptic number.

It is an amenable number.

11144209 is a deficient number, since it is larger than the sum of its proper divisors (1).

11144209 is an equidigital number, since it uses as much as digits as its factorization.

11144209 is an evil number, because the sum of its binary digits is even.

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

The square root of 11144209 is about 3338.2943249510. The cubic root of 11144209 is about 223.3656652283.

The spelling of 11144209 in words is "eleven million, one hundred forty-four thousand, two hundred nine".