112049981 has 2 divisors, whose sum is σ = 112049982. Its totient is φ = 112049980.

The previous prime is 112049953. The next prime is 112049989. The reversal of 112049981 is 189940211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 101324356 + 10725625 = 10066^2 + 3275^2 .

It is a cyclic number.

It is not a de Polignac number, because 112049981 - 2¹⁰ = 112048957 is a prime.

It is a super-2 number, since 2×112049981² = 25110396484200722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112049989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56024990 + 56024991.

It is an arithmetic number, because the mean of its divisors is an integer number (56024991).

Almost surely, 2^112049981 is an apocalyptic number.

It is an amenable number.

112049981 is a deficient number, since it is larger than the sum of its proper divisors (1).

112049981 is an equidigital number, since it uses as much as digits as its factorization.

112049981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 35.

The square root of 112049981 is about 10585.3663611611. The cubic root of 112049981 is about 482.1001453386.

The spelling of 112049981 in words is "one hundred twelve million, forty-nine thousand, nine hundred eighty-one".