11739281 has 2 divisors, whose sum is σ = 11739282. Its totient is φ = 11739280.

The previous prime is 11739257. The next prime is 11739293. The reversal of 11739281 is 18293711.

11739281 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., 11669056 + 70225 = 3416^2 + 265^2 .

It is an emirp because it is prime and its reverse (18293711) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11739281 is a prime.

It is a super-2 number, since 2×11739281² = 275621436793922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11739241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5869640 + 5869641.

It is an arithmetic number, because the mean of its divisors is an integer number (5869641).

Almost surely, 2^11739281 is an apocalyptic number.

It is an amenable number.

11739281 is a deficient number, since it is larger than the sum of its proper divisors (1).

11739281 is an equidigital number, since it uses as much as digits as its factorization.

11739281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3024, while the sum is 32.

The square root of 11739281 is about 3426.2634166100. The cubic root of 11739281 is about 227.2726449018.

The spelling of 11739281 in words is "eleven million, seven hundred thirty-nine thousand, two hundred eighty-one".