11269409 has 2 divisors, whose sum is σ = 11269410. Its totient is φ = 11269408.

The previous prime is 11269403. The next prime is 11269411. The reversal of 11269409 is 90496211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11022400 + 247009 = 3320^2 + 497^2 .

It is a cyclic number.

It is not a de Polignac number, because 11269409 - 2¹⁶ = 11203873 is a prime.

Together with 11269411, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11269403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5634704 + 5634705.

It is an arithmetic number, because the mean of its divisors is an integer number (5634705).

Almost surely, 2^11269409 is an apocalyptic number.

It is an amenable number.

11269409 is a deficient number, since it is larger than the sum of its proper divisors (1).

11269409 is an equidigital number, since it uses as much as digits as its factorization.

11269409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 11269409 is about 3356.9940422944. The cubic root of 11269409 is about 224.1990219386.

The spelling of 11269409 in words is "eleven million, two hundred sixty-nine thousand, four hundred nine".