11144821 has 2 divisors, whose sum is σ = 11144822. Its totient is φ = 11144820.

The previous prime is 11144801. The next prime is 11144831. The reversal of 11144821 is 12844111.

11144821 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9796900 + 1347921 = 3130^2 + 1161^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11144821 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11144792 and 11144801.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11144801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5572410 + 5572411.

It is an arithmetic number, because the mean of its divisors is an integer number (5572411).

Almost surely, 2^11144821 is an apocalyptic number.

It is an amenable number.

11144821 is a deficient number, since it is larger than the sum of its proper divisors (1).

11144821 is an equidigital number, since it uses as much as digits as its factorization.

11144821 is an evil number, because the sum of its binary digits is even.

The product of its digits is 256, while the sum is 22.

The square root of 11144821 is about 3338.3859872699. The cubic root of 11144821 is about 223.3697539672.

Adding to 11144821 its reverse (12844111), we get a palindrome (23988932).

The spelling of 11144821 in words is "eleven million, one hundred forty-four thousand, eight hundred twenty-one".