1105503445 has 4 divisors (see below), whose sum is σ = 1326604140. Its totient is φ = 884402752.

The previous prime is 1105503439. The next prime is 1105503449. The reversal of 1105503445 is 5443055011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5443055011 = 107 ⋅50869673.

It can be written as a sum of positive squares in 2 ways, for example, as 145371249 + 960132196 = 12057^2 + 30986^2 .

It is a cyclic number.

It is not a de Polignac number, because 1105503445 - 2¹⁹ = 1104979157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1105503449) 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, 110550340 + ... + 110550349.

It is an arithmetic number, because the mean of its divisors is an integer number (331651035).

Almost surely, 2^1105503445 is an apocalyptic number.

It is an amenable number.

1105503445 is a deficient number, since it is larger than the sum of its proper divisors (221100695).

1105503445 is an equidigital number, since it uses as much as digits as its factorization.

1105503445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221100694.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 1105503445 is about 33249.1119430279. Note that the first 3 decimals coincide. The cubic root of 1105503445 is about 1033.9987968689.

Adding to 1105503445 its reverse (5443055011), we get a palindrome (6548558456).

The spelling of 1105503445 in words is "one billion, one hundred five million, five hundred three thousand, four hundred forty-five".