11297009 has 2 divisors, whose sum is σ = 11297010. Its totient is φ = 11297008.

The previous prime is 11296991. The next prime is 11297021. The reversal of 11297009 is 90079211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6390784 + 4906225 = 2528^2 + 2215^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11297009 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11296009) 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, 5648504 + 5648505.

It is an arithmetic number, because the mean of its divisors is an integer number (5648505).

Almost surely, 2^11297009 is an apocalyptic number.

It is an amenable number.

11297009 is a deficient number, since it is larger than the sum of its proper divisors (1).

11297009 is an equidigital number, since it uses as much as digits as its factorization.

11297009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1134, while the sum is 29.

The square root of 11297009 is about 3361.1023489326. The cubic root of 11297009 is about 224.3819019300.

The spelling of 11297009 in words is "eleven million, two hundred ninety-seven thousand, nine".