1112443 has 4 divisors (see below), whose sum is σ = 1136160. Its totient is φ = 1088728.

The previous prime is 1112413. The next prime is 1112467. The reversal of 1112443 is 3442111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1112443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1112413) 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 in 3 ways as a sum of consecutive naturals, for example, 11788 + ... + 11881.

It is an arithmetic number, because the mean of its divisors is an integer number (284040).

2^1112443 is an apocalyptic number.

1112443 is a deficient number, since it is larger than the sum of its proper divisors (23717).

1112443 is an equidigital number, since it uses as much as digits as its factorization.

1112443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23716.

The product of its digits is 96, while the sum is 16.

The square root of 1112443 is about 1054.7241345489. The cubic root of 1112443 is about 103.6157852246.

Adding to 1112443 its reverse (3442111), we get a palindrome (4554554).

The spelling of 1112443 in words is "one million, one hundred twelve thousand, four hundred forty-three".