11882281 has 2 divisors, whose sum is σ = 11882282. Its totient is φ = 11882280.

The previous prime is 11882279. The next prime is 11882287. The reversal of 11882281 is 18228811.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9865881 + 2016400 = 3141^2 + 1420^2 .

It is a cyclic number.

It is not a de Polignac number, because 11882281 - 2¹ = 11882279 is a prime.

It is a super-2 number, since 2×11882281² = 282377203525922, which contains 22 as substring.

Together with 11882279, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (11882287) 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, 5941140 + 5941141.

It is an arithmetic number, because the mean of its divisors is an integer number (5941141).

Almost surely, 2^11882281 is an apocalyptic number.

It is an amenable number.

11882281 is a deficient number, since it is larger than the sum of its proper divisors (1).

11882281 is an equidigital number, since it uses as much as digits as its factorization.

11882281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2048, while the sum is 31.

The square root of 11882281 is about 3447.0684646522. The cubic root of 11882281 is about 228.1917503047.

The spelling of 11882281 in words is "eleven million, eight hundred eighty-two thousand, two hundred eighty-one".