11242681 has 2 divisors, whose sum is σ = 11242682. Its totient is φ = 11242680.

The previous prime is 11242663. The next prime is 11242711. The reversal of 11242681 is 18624211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5837056 + 5405625 = 2416^2 + 2325^2 .

It is a cyclic number.

It is not a de Polignac number, because 11242681 - 2¹¹ = 11240633 is a prime.

It is a super-2 number, since 2×11242681² = 252795752135522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11242601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5621340 + 5621341.

It is an arithmetic number, because the mean of its divisors is an integer number (5621341).

Almost surely, 2^11242681 is an apocalyptic number.

It is an amenable number.

11242681 is a deficient number, since it is larger than the sum of its proper divisors (1).

11242681 is an equidigital number, since it uses as much as digits as its factorization.

11242681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 768, while the sum is 25.

The square root of 11242681 is about 3353.0107366366. The cubic root of 11242681 is about 224.0216350808.

Adding to 11242681 its reverse (18624211), we get a palindrome (29866892).

The spelling of 11242681 in words is "eleven million, two hundred forty-two thousand, six hundred eighty-one".