1042543441 has 4 divisors (see below), whose sum is σ = 1056824932. Its totient is φ = 1028261952.

The previous prime is 1042543429. The next prime is 1042543477. The reversal of 1042543441 is 1443452401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1443452401 = 19 ⋅75971179.

It can be written as a sum of positive squares in 2 ways, for example, as 909625600 + 132917841 = 30160^2 + 11529^2 .

It is a cyclic number.

It is not a de Polignac number, because 1042543441 - 2¹¹ = 1042541393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1042540441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7140636 + ... + 7140781.

It is an arithmetic number, because the mean of its divisors is an integer number (264206233).

Almost surely, 2^1042543441 is an apocalyptic number.

It is an amenable number.

1042543441 is a deficient number, since it is larger than the sum of its proper divisors (14281491).

1042543441 is an equidigital number, since it uses as much as digits as its factorization.

1042543441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14281490.

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 1042543441 is about 32288.4412909636. The cubic root of 1042543441 is about 1013.9846644948.

Adding to 1042543441 its reverse (1443452401), we get a palindrome (2485995842).

The spelling of 1042543441 in words is "one billion, forty-two million, five hundred forty-three thousand, four hundred forty-one".