5128003 has 4 divisors (see below), whose sum is σ = 5132808. Its totient is φ = 5123200.

The previous prime is 5127977. The next prime is 5128007. The reversal of 5128003 is 3008215.

It is a happy number.

5128003 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

5128003 is a nontrivial binomial coefficient, being equal to C(3203, 2).

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 5128003 - 2⁵ = 5127971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5128007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1 + ... + 3202.

It is an arithmetic number, because the mean of its divisors is an integer number (1283202).

Almost surely, 2^5128003 is an apocalyptic number.

5128003 is the 3202-nd triangular number.

5128003 is the 1068-th centered nonagonal number.

5128003 is a deficient number, since it is larger than the sum of its proper divisors (4805).

5128003 is a wasteful number, since it uses less digits than its factorization.

5128003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4804.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 5128003 is about 2264.5094391501. The cubic root of 5128003 is about 172.4445302290. Note that the first 3 decimals are identical.

It can be divided in two parts, 512 and 8003, that added together give a triangular number (8515 = T₁₃₀).

The spelling of 5128003 in words is "five million, one hundred twenty-eight thousand, three".