1103504544 has 144 divisors (see below), whose sum is σ = 3339416808. Its totient is φ = 344457216.

The previous prime is 1103504531. The next prime is 1103504581. The reversal of 1103504544 is 4454053011.

It is a happy number.

1103504544 is a `hidden beast` number, since 1 + 103 + 504 + 54 + 4 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1022720400 + 80784144 = 31980^2 + 8988^2 .

It is a tau number, because it is divible by the number of its divisors (144).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1257834 + ... + 1258710.

Almost surely, 2^1103504544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1103504544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1669708404).

1103504544 is an abundant number, since it is smaller than the sum of its proper divisors (2235912264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1103504544 is a wasteful number, since it uses less digits than its factorization.

1103504544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1167 (or 1156 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 1103504544 is about 33219.0388783300. The cubic root of 1103504544 is about 1033.3752172640.

Adding to 1103504544 its reverse (4454053011), we get a palindrome (5557557555).

The spelling of 1103504544 in words is "one billion, one hundred three million, five hundred four thousand, five hundred forty-four".