45003 has 8 divisors (see below), whose sum is σ = 68608. Its totient is φ = 25704.

The previous prime is 44987. The next prime is 45007. The reversal of 45003 is 30054.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 45003 - 2⁴ = 44987 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45003.

It is not an unprimeable number, because it can be changed into a prime (45007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1051 + ... + 1092.

It is an arithmetic number, because the mean of its divisors is an integer number (8576).

2⁴⁵⁰⁰³ is an apocalyptic number.

45003 is a deficient number, since it is larger than the sum of its proper divisors (23605).

45003 is a wasteful number, since it uses less digits than its factorization.

45003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2153.

The product of its (nonzero) digits is 60, while the sum is 12.

The square root of 45003 is about 212.1391053059. The cubic root of 45003 is about 35.5697234481.

Adding to 45003 its reverse (30054), we get a palindrome (75057).

The spelling of 45003 in words is "forty-five thousand, three".