1103504445 has 16 divisors (see below), whose sum is σ = 1961785920. Its totient is φ = 588535632.

The previous prime is 1103504407. The next prime is 1103504453. The reversal of 1103504445 is 5444053011.

It is a happy number.

1103504445 is a `hidden beast` number, since 110 + 3 + 504 + 4 + 45 = 666.

It is not a de Polignac number, because 1103504445 - 2¹⁷ = 1103373373 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4086919 + ... + 4087188.

It is an arithmetic number, because the mean of its divisors is an integer number (122611620).

Almost surely, 2^1103504445 is an apocalyptic number.

1103504445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1103504445 is a deficient number, since it is larger than the sum of its proper divisors (858281475).

1103504445 is an equidigital number, since it uses as much as digits as its factorization.

1103504445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8174121 (or 8174115 counting only the distinct ones).

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

The square root of 1103504445 is about 33219.0373882206. The cubic root of 1103504445 is about 1033.3751863612.

Adding to 1103504445 its reverse (5444053011), we get a palindrome (6547557456).

The spelling of 1103504445 in words is "one billion, one hundred three million, five hundred four thousand, four hundred forty-five".