1103545 has 4 divisors (see below), whose sum is σ = 1324260. Its totient is φ = 882832.

The previous prime is 1103533. The next prime is 1103549. The reversal of 1103545 is 5453011.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 156816 + 946729 = 396^2 + 973^2 .

It is a cyclic number.

It is not a de Polignac number, because 1103545 - 2¹⁵ = 1070777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1103549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110350 + ... + 110359.

It is an arithmetic number, because the mean of its divisors is an integer number (331065).

2^1103545 is an apocalyptic number.

It is an amenable number.

1103545 is a deficient number, since it is larger than the sum of its proper divisors (220715).

1103545 is an equidigital number, since it uses as much as digits as its factorization.

1103545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220714.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 1103545 is about 1050.4975011869. The cubic root of 1103545 is about 103.3387845430.

Adding to 1103545 its reverse (5453011), we get a palindrome (6556556).

It can be divided in two parts, 110 and 3545, that added together give a triangular number (3655 = T₈₅).

The spelling of 1103545 in words is "one million, one hundred three thousand, five hundred forty-five".