1224743 has 6 divisors (see below), whose sum is σ = 1326384. Its totient is φ = 1130376.

The previous prime is 1224739. The next prime is 1224763. The reversal of 1224743 is 3474221.

It is not a de Polignac number, because 1224743 - 2² = 1224739 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224703) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3455 + ... + 3792.

It is an arithmetic number, because the mean of its divisors is an integer number (221064).

2^1224743 is an apocalyptic number.

1224743 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1224743 is a deficient number, since it is larger than the sum of its proper divisors (101641).

1224743 is an equidigital number, since it uses as much as digits as its factorization.

1224743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7273 (or 7260 counting only the distinct ones).

The product of its digits is 1344, while the sum is 23.

The square root of 1224743 is about 1106.6810742034. The cubic root of 1224743 is about 106.9912648996.

Adding to 1224743 its reverse (3474221), we get a palindrome (4698964).

The spelling of 1224743 in words is "one million, two hundred twenty-four thousand, seven hundred forty-three".