1442723 has 2 divisors, whose sum is σ = 1442724. Its totient is φ = 1442722.

The previous prime is 1442717. The next prime is 1442731. The reversal of 1442723 is 3272441.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1442723 is a prime.

It is not a weakly prime, because it can be changed into another prime (1442743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 721361 + 721362.

It is an arithmetic number, because the mean of its divisors is an integer number (721362).

2^1442723 is an apocalyptic number.

1442723 is a deficient number, since it is larger than the sum of its proper divisors (1).

1442723 is an equidigital number, since it uses as much as digits as its factorization.

1442723 is an odious number, because the sum of its binary digits is odd.

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

The square root of 1442723 is about 1201.1340474735. The cubic root of 1442723 is about 112.9954575666.

The spelling of 1442723 in words is "one million, four hundred forty-two thousand, seven hundred twenty-three".