112243921 has 2 divisors, whose sum is σ = 112243922. Its totient is φ = 112243920.

The previous prime is 112243909. The next prime is 112243987. The reversal of 112243921 is 129342211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96530625 + 15713296 = 9825^2 + 3964^2 .

It is a cyclic number.

It is not a de Polignac number, because 112243921 - 2⁹ = 112243409 is a prime.

It is not a weakly prime, because it can be changed into another prime (112246921) 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, 56121960 + 56121961.

It is an arithmetic number, because the mean of its divisors is an integer number (56121961).

Almost surely, 2^112243921 is an apocalyptic number.

It is an amenable number.

112243921 is a deficient number, since it is larger than the sum of its proper divisors (1).

112243921 is an equidigital number, since it uses as much as digits as its factorization.

112243921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 25.

The square root of 112243921 is about 10594.5231605769. The cubic root of 112243921 is about 482.3781302452.

The spelling of 112243921 in words is "one hundred twelve million, two hundred forty-three thousand, nine hundred twenty-one".