1122443 has 6 divisors (see below), whose sum is σ = 1305756. Its totient is φ = 962052.

The previous prime is 1122437. The next prime is 1122449. The reversal of 1122443 is 3442211.

It is an interprime number because it is at equal distance from previous prime (1122437) and next prime (1122449).

It is not a de Polignac number, because 1122443 - 2⁴ = 1122427 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 1 + 1 + 2⁷ + 2¹³ + 4⁸ + 4¹⁰ + 3² .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1122449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11405 + ... + 11502.

It is an arithmetic number, because the mean of its divisors is an integer number (217626).

2^1122443 is an apocalyptic number.

1122443 is a deficient number, since it is larger than the sum of its proper divisors (183313).

1122443 is an equidigital number, since it uses as much as digits as its factorization.

1122443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22921 (or 22914 counting only the distinct ones).

The product of its digits is 192, while the sum is 17.

The square root of 1122443 is about 1059.4541047162. The cubic root of 1122443 is about 103.9253347216.

Adding to 1122443 its reverse (3442211), we get a palindrome (4564654).

The spelling of 1122443 in words is "one million, one hundred twenty-two thousand, four hundred forty-three".