1105444543 has 4 divisors (see below), whose sum is σ = 1263365200. Its totient is φ = 947523888.

The previous prime is 1105444519. The next prime is 1105444589. The reversal of 1105444543 is 3454445011.

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 1105444543 - 2¹³ = 1105436351 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 (1105442543) 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, 78960318 + ... + 78960331.

It is an arithmetic number, because the mean of its divisors is an integer number (315841300).

Almost surely, 2^1105444543 is an apocalyptic number.

1105444543 is a deficient number, since it is larger than the sum of its proper divisors (157920657).

1105444543 is an equidigital number, since it uses as much as digits as its factorization.

1105444543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157920656.

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

The square root of 1105444543 is about 33248.2261632106. The cubic root of 1105444543 is about 1033.9804324820.

Adding to 1105444543 its reverse (3454445011), we get a palindrome (4559889554).

The spelling of 1105444543 in words is "one billion, one hundred five million, four hundred forty-four thousand, five hundred forty-three".