1112643 has 36 divisors (see below), whose sum is σ = 1985880. Its totient is φ = 613872.

The previous prime is 1112623. The next prime is 1112651. The reversal of 1112643 is 3462111.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

1112643 is a `hidden beast` number, since 11 + 12 + 643 = 666.

It is not a de Polignac number, because 1112643 - 2⁵ = 1112611 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1112623) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 38353 + ... + 38381.

2^1112643 is an apocalyptic number.

1112643 is a deficient number, since it is larger than the sum of its proper divisors (873237).

1112643 is an equidigital number, since it uses as much as digits as its factorization.

1112643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81 (or 39 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 1112643 is about 1054.8189418094. The cubic root of 1112643 is about 103.6219943563.

Adding to 1112643 its reverse (3462111), we get a palindrome (4574754).

The spelling of 1112643 in words is "one million, one hundred twelve thousand, six hundred forty-three".