11518289 has 2 divisors, whose sum is σ = 11518290. Its totient is φ = 11518288.

The previous prime is 11518277. The next prime is 11518301. The reversal of 11518289 is 98281511.

11518289 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (11518277) and next prime (11518301).

It can be written as a sum of positive squares in only one way, i.e., 10029889 + 1488400 = 3167^2 + 1220^2 .

It is a cyclic number.

It is not a de Polignac number, because 11518289 - 2⁸ = 11518033 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (11518219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5759144 + 5759145.

It is an arithmetic number, because the mean of its divisors is an integer number (5759145).

Almost surely, 2^11518289 is an apocalyptic number.

It is an amenable number.

11518289 is a deficient number, since it is larger than the sum of its proper divisors (1).

11518289 is an equidigital number, since it uses as much as digits as its factorization.

11518289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5760, while the sum is 35.

The square root of 11518289 is about 3393.8604862310. The cubic root of 11518289 is about 225.8374650400.

The spelling of 11518289 in words is "eleven million, five hundred eighteen thousand, two hundred eighty-nine".