11563241 has 2 divisors, whose sum is σ = 11563242. Its totient is φ = 11563240.

The previous prime is 11563231. The next prime is 11563243. The reversal of 11563241 is 14236511.

11563241 = 2404² + 2405².

11563241 is digitally balanced in base 3, 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., 5784025 + 5779216 = 2405^2 + 2404^2 .

It is a cyclic number.

It is not a de Polignac number, because 11563241 - 2¹⁰ = 11562217 is a prime.

It is a Sophie Germain prime.

Together with 11563243, 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 (11563243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5781620 + 5781621.

It is an arithmetic number, because the mean of its divisors is an integer number (5781621).

Almost surely, 2^11563241 is an apocalyptic number.

11563241 is the 2405-th centered square number.

It is an amenable number.

11563241 is a deficient number, since it is larger than the sum of its proper divisors (1).

11563241 is an equidigital number, since it uses as much as digits as its factorization.

11563241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 720, while the sum is 23.

The square root of 11563241 is about 3400.4765842452. The cubic root of 11563241 is about 226.1308728508.

Adding to 11563241 its reverse (14236511), we get a palindrome (25799752).

The spelling of 11563241 in words is "eleven million, five hundred sixty-three thousand, two hundred forty-one".