11166289 has 2 divisors, whose sum is σ = 11166290. Its totient is φ = 11166288.

The previous prime is 11166277. The next prime is 11166329. The reversal of 11166289 is 98266111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6671889 + 4494400 = 2583^2 + 2120^2 .

It is an emirp because it is prime and its reverse (98266111) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11166289 is a prime.

It is not a weakly prime, because it can be changed into another prime (11161289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5583144 + 5583145.

It is an arithmetic number, because the mean of its divisors is an integer number (5583145).

Almost surely, 2^11166289 is an apocalyptic number.

It is an amenable number.

11166289 is a deficient number, since it is larger than the sum of its proper divisors (1).

11166289 is an equidigital number, since it uses as much as digits as its factorization.

11166289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 34.

The square root of 11166289 is about 3341.5997665789. The cubic root of 11166289 is about 223.5130858982.

The spelling of 11166289 in words is "eleven million, one hundred sixty-six thousand, two hundred eighty-nine".