11436281 has 2 divisors, whose sum is σ = 11436282. Its totient is φ = 11436280.

The previous prime is 11436263. The next prime is 11436283. The reversal of 11436281 is 18263411.

11436281 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., 11424400 + 11881 = 3380^2 + 109^2 .

It is a cyclic number.

It is not a de Polignac number, because 11436281 - 2²² = 7241977 is a prime.

It is a super-2 number, since 2×11436281² = 261577046221922, which contains 22 as substring.

Together with 11436283, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11436281.

It is not a weakly prime, because it can be changed into another prime (11436283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5718140 + 5718141.

It is an arithmetic number, because the mean of its divisors is an integer number (5718141).

Almost surely, 2^11436281 is an apocalyptic number.

It is an amenable number.

11436281 is a deficient number, since it is larger than the sum of its proper divisors (1).

11436281 is an equidigital number, since it uses as much as digits as its factorization.

11436281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1152, while the sum is 26.

The square root of 11436281 is about 3381.7570876691. The cubic root of 11436281 is about 225.3002148865.

Adding to 11436281 its reverse (18263411), we get a palindrome (29699692).

The spelling of 11436281 in words is "eleven million, four hundred thirty-six thousand, two hundred eighty-one".