1000445103 has 72 divisors (see below), whose sum is σ = 1754747280. Its totient is φ = 546981120.

The previous prime is 1000445093. The next prime is 1000445107. The reversal of 1000445103 is 3015440001.

It is a happy number.

It is not a de Polignac number, because 1000445103 - 2⁸ = 1000444847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000445107) 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 71 ways as a sum of consecutive naturals, for example, 1751808 + ... + 1752378.

It is an arithmetic number, because the mean of its divisors is an integer number (24371490).

Almost surely, 2^1000445103 is an apocalyptic number.

1000445103 is a deficient number, since it is larger than the sum of its proper divisors (754302177).

1000445103 is a wasteful number, since it uses less digits than its factorization.

1000445103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 757 (or 747 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1000445103 is about 31629.8135151000. The cubic root of 1000445103 is about 1000.1483456591.

Adding to 1000445103 its reverse (3015440001), we get a palindrome (4015885104).

The spelling of 1000445103 in words is "one billion, four hundred forty-five thousand, one hundred three".