1442743 has 2 divisors, whose sum is σ = 1442744. Its totient is φ = 1442742.

The previous prime is 1442731. The next prime is 1442783. The reversal of 1442743 is 3472441.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1442743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1442723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 721371 + 721372.

It is an arithmetic number, because the mean of its divisors is an integer number (721372).

2^1442743 is an apocalyptic number.

1442743 is a deficient number, since it is larger than the sum of its proper divisors (1).

1442743 is an equidigital number, since it uses as much as digits as its factorization.

1442743 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2688, while the sum is 25.

The square root of 1442743 is about 1201.1423729101. The cubic root of 1442743 is about 112.9959797040.

The spelling of 1442743 in words is "one million, four hundred forty-two thousand, seven hundred forty-three".