4518003 has 8 divisors (see below), whose sum is σ = 6884608. Its totient is φ = 2581704.

The previous prime is 4517999. The next prime is 4518023. The reversal of 4518003 is 3008154.

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

It is not a de Polignac number, because 4518003 - 2² = 4517999 is a prime.

It is a super-2 number, since 2×4518003² = 40824702216018, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 215143 = 4518003 / (4 + 5 + 1 + 8 + 0 + 0 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4518023) 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, 107551 + ... + 107592.

It is an arithmetic number, because the mean of its divisors is an integer number (860576).

Almost surely, 2^4518003 is an apocalyptic number.

4518003 is a deficient number, since it is larger than the sum of its proper divisors (2366605).

4518003 is a wasteful number, since it uses less digits than its factorization.

4518003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215153.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 4518003 is about 2125.5594557669. The cubic root of 4518003 is about 165.3162346644.

The spelling of 4518003 in words is "four million, five hundred eighteen thousand, three".