11340281 has 2 divisors, whose sum is σ = 11340282. Its totient is φ = 11340280.

The previous prime is 11340271. The next prime is 11340293. The reversal of 11340281 is 18204311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10725625 + 614656 = 3275^2 + 784^2 .

It is an emirp because it is prime and its reverse (18204311) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11340281 is a prime.

It is a super-2 number, since 2×11340281² = 257203946317922, which contains 22 as substring.

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 (11340271) 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, 5670140 + 5670141.

It is an arithmetic number, because the mean of its divisors is an integer number (5670141).

Almost surely, 2^11340281 is an apocalyptic number.

It is an amenable number.

11340281 is a deficient number, since it is larger than the sum of its proper divisors (1).

11340281 is an equidigital number, since it uses as much as digits as its factorization.

11340281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 11340281 is about 3367.5333702875. The cubic root of 11340281 is about 224.6680273095.

Adding to 11340281 its reverse (18204311), we get a palindrome (29544592).

The spelling of 11340281 in words is "eleven million, three hundred forty thousand, two hundred eighty-one".