1045542443 has 4 divisors (see below), whose sum is σ = 1140591768. Its totient is φ = 950493120.

The previous prime is 1045542439. The next prime is 1045542457. The reversal of 1045542443 is 3442455401.

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 1045542443 - 2² = 1045542439 is a prime.

It is a super-2 number, since 2×1045542443² = 2186318000228816498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1045542343) 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, 47524646 + ... + 47524667.

It is an arithmetic number, because the mean of its divisors is an integer number (285147942).

Almost surely, 2^1045542443 is an apocalyptic number.

1045542443 is a deficient number, since it is larger than the sum of its proper divisors (95049325).

1045542443 is an equidigital number, since it uses as much as digits as its factorization.

1045542443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95049324.

The product of its (nonzero) digits is 38400, while the sum is 32.

The square root of 1045542443 is about 32334.8487394019. The cubic root of 1045542443 is about 1014.9560167632.

Adding to 1045542443 its reverse (3442455401), we get a palindrome (4487997844).

The spelling of 1045542443 in words is "one billion, forty-five million, five hundred forty-two thousand, four hundred forty-three".