1044543541 has 4 divisors (see below), whose sum is σ = 1044670284. Its totient is φ = 1044416800.

The previous prime is 1044543517. The next prime is 1044543553. The reversal of 1044543541 is 1453454401.

1044543541 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1453454401 = 7 ⋅207636343.

It can be written as a sum of positive squares in 2 ways, for example, as 1014677316 + 29866225 = 31854^2 + 5465^2 .

It is a cyclic number.

It is not a de Polignac number, because 1044543541 - 2⁹ = 1044543029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1044543341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50080 + ... + 67801.

It is an arithmetic number, because the mean of its divisors is an integer number (261167571).

Almost surely, 2^1044543541 is an apocalyptic number.

It is an amenable number.

1044543541 is a deficient number, since it is larger than the sum of its proper divisors (126743).

1044543541 is an equidigital number, since it uses as much as digits as its factorization.

1044543541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126742.

The product of its (nonzero) digits is 19200, while the sum is 31.

The square root of 1044543541 is about 32319.3988341368. The cubic root of 1044543541 is about 1014.6326871062.

Adding to 1044543541 its reverse (1453454401), we get a palindrome (2497997942).

The spelling of 1044543541 in words is "one billion, forty-four million, five hundred forty-three thousand, five hundred forty-one".