1442543 has 4 divisors (see below), whose sum is σ = 1446480. Its totient is φ = 1438608.

The previous prime is 1442531. The next prime is 1442549. The reversal of 1442543 is 3452441.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1442543 - 2⁴ = 1442527 is a prime.

It is a d-powerful number, because it can be written as 1 + 4² + 4⁹ + 2¹⁷ + 5 + 4¹⁰ + 3⁶ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442549) 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 in 3 ways as a sum of consecutive naturals, for example, 1355 + ... + 2172.

It is an arithmetic number, because the mean of its divisors is an integer number (361620).

2^1442543 is an apocalyptic number.

1442543 is a deficient number, since it is larger than the sum of its proper divisors (3937).

1442543 is an equidigital number, since it uses as much as digits as its factorization.

1442543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3936.

The product of its digits is 1920, while the sum is 23.

The square root of 1442543 is about 1201.0591159473. The cubic root of 1442543 is about 112.9907581133.

Adding to 1442543 its reverse (3452441), we get a palindrome (4894984).

The spelling of 1442543 in words is "one million, four hundred forty-two thousand, five hundred forty-three".