112005281 has 2 divisors, whose sum is σ = 112005282. Its totient is φ = 112005280.

The previous prime is 112005259. The next prime is 112005329. The reversal of 112005281 is 182500211.

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., 88190881 + 23814400 = 9391^2 + 4880^2 .

It is a cyclic number.

It is not a de Polignac number, because 112005281 - 2²² = 107810977 is a prime.

It is a super-2 number, since 2×112005281² = 25090365943777922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (112005251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56002640 + 56002641.

It is an arithmetic number, because the mean of its divisors is an integer number (56002641).

Almost surely, 2^112005281 is an apocalyptic number.

It is an amenable number.

112005281 is a deficient number, since it is larger than the sum of its proper divisors (1).

112005281 is an equidigital number, since it uses as much as digits as its factorization.

112005281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 160, while the sum is 20.

The square root of 112005281 is about 10583.2547451150. The cubic root of 112005281 is about 482.0360288834.

Adding to 112005281 its reverse (182500211), we get a palindrome (294505492).

The spelling of 112005281 in words is "one hundred twelve million, five thousand, two hundred eighty-one".