11173289 has 2 divisors, whose sum is σ = 11173290. Its totient is φ = 11173288.

The previous prime is 11173229. The next prime is 11173291. The reversal of 11173289 is 98237111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11155600 + 17689 = 3340^2 + 133^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11173289 is a prime.

It is a Sophie Germain prime.

Together with 11173291, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (11173229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5586644 + 5586645.

It is an arithmetic number, because the mean of its divisors is an integer number (5586645).

Almost surely, 2^11173289 is an apocalyptic number.

It is an amenable number.

11173289 is a deficient number, since it is larger than the sum of its proper divisors (1).

11173289 is an equidigital number, since it uses as much as digits as its factorization.

11173289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3024, while the sum is 32.

The square root of 11173289 is about 3342.6470049947. The cubic root of 11173289 is about 223.5597819484.

The spelling of 11173289 in words is "eleven million, one hundred seventy-three thousand, two hundred eighty-nine".