45042003 has 12 divisors (see below), whose sum is σ = 65693680. Its totient is φ = 29735856.

The previous prime is 45042001. The next prime is 45042007. The reversal of 45042003 is 30024054.

It is a happy number.

It is not a de Polignac number, because 45042003 - 2¹ = 45042001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45042001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23368 + ... + 25221.

Almost surely, 2^45042003 is an apocalyptic number.

45042003 is a deficient number, since it is larger than the sum of its proper divisors (20651677).

45042003 is a wasteful number, since it uses less digits than its factorization.

45042003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48698 (or 48695 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 45042003 is about 6711.3339210622. Note that the first 3 decimals coincide. The cubic root of 45042003 is about 355.7999628417.

Adding to 45042003 its reverse (30024054), we get a palindrome (75066057).

The spelling of 45042003 in words is "forty-five million, forty-two thousand, three".