1045403503 has 16 divisors (see below), whose sum is σ = 1118880000. Its totient is φ = 973848960.

The previous prime is 1045403501. The next prime is 1045403507. The reversal of 1045403503 is 3053045401.

It is a cyclic number.

It is not a de Polignac number, because 1045403503 - 2¹ = 1045403501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1045403501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 672375 + ... + 673927.

It is an arithmetic number, because the mean of its divisors is an integer number (69930000).

Almost surely, 2^1045403503 is an apocalyptic number.

1045403503 is a deficient number, since it is larger than the sum of its proper divisors (73476497).

1045403503 is a wasteful number, since it uses less digits than its factorization.

1045403503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2142.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 1045403503 is about 32332.7002120145. The cubic root of 1045403503 is about 1014.9110562941.

Adding to 1045403503 its reverse (3053045401), we get a palindrome (4098448904).

The spelling of 1045403503 in words is "one billion, forty-five million, four hundred three thousand, five hundred three".