11116549 has 2 divisors, whose sum is σ = 11116550. Its totient is φ = 11116548.

The previous prime is 11116543. The next prime is 11116559. The reversal of 11116549 is 94561111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6630625 + 4485924 = 2575^2 + 2118^2 .

It is an emirp because it is prime and its reverse (94561111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11116549 - 2⁵ = 11116517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11116543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5558274 + 5558275.

It is an arithmetic number, because the mean of its divisors is an integer number (5558275).

Almost surely, 2^11116549 is an apocalyptic number.

It is an amenable number.

11116549 is a deficient number, since it is larger than the sum of its proper divisors (1).

11116549 is an equidigital number, since it uses as much as digits as its factorization.

11116549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1080, while the sum is 28.

The square root of 11116549 is about 3334.1489168902. The cubic root of 11116549 is about 223.1807137770.

The spelling of 11116549 in words is "eleven million, one hundred sixteen thousand, five hundred forty-nine".