100440003 has 4 divisors (see below), whose sum is σ = 133920008. Its totient is φ = 66960000.

The previous prime is 100440001. The next prime is 100440013. The reversal of 100440003 is 300044001.

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

It is not a de Polignac number, because 100440003 - 2¹ = 100440001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100440001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16739998 + ... + 16740003.

It is an arithmetic number, because the mean of its divisors is an integer number (33480002).

Almost surely, 2^100440003 is an apocalyptic number.

100440003 is a deficient number, since it is larger than the sum of its proper divisors (33480005).

100440003 is an equidigital number, since it uses as much as digits as its factorization.

100440003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33480004.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 100440003 is about 10021.9760027651. The cubic root of 100440003 is about 464.8386583278.

Adding to 100440003 its reverse (300044001), we get a palindrome (400484004).

The spelling of 100440003 in words is "one hundred million, four hundred forty thousand, three".