11091449 has 2 divisors, whose sum is σ = 11091450. Its totient is φ = 11091448.

The previous prime is 11091433. The next prime is 11091461. The reversal of 11091449 is 94419011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7327849 + 3763600 = 2707^2 + 1940^2 .

It is an emirp because it is prime and its reverse (94419011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11091449 - 2⁴ = 11091433 is a prime.

It is not a weakly prime, because it can be changed into another prime (11091049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5545724 + 5545725.

It is an arithmetic number, because the mean of its divisors is an integer number (5545725).

Almost surely, 2^11091449 is an apocalyptic number.

It is an amenable number.

11091449 is a deficient number, since it is larger than the sum of its proper divisors (1).

11091449 is an equidigital number, since it uses as much as digits as its factorization.

11091449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 11091449 is about 3330.3827107406. The cubic root of 11091449 is about 223.0126143266.

The spelling of 11091449 in words is "eleven million, ninety-one thousand, four hundred forty-nine".