1002503 has 2 divisors, whose sum is σ = 1002504. Its totient is φ = 1002502.

The previous prime is 1002493. The next prime is 1002511. The reversal of 1002503 is 3052001.

1002503 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1002503 - 2⁴ = 1002487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1002523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501251 + 501252.

It is an arithmetic number, because the mean of its divisors is an integer number (501252).

2^1002503 is an apocalyptic number.

1002503 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002503 is an equidigital number, since it uses as much as digits as its factorization.

1002503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30, while the sum is 11.

The square root of 1002503 is about 1001.2507178524. The cubic root of 1002503 is about 100.0833638188.

Adding to 1002503 its reverse (3052001), we get a palindrome (4054504).

The spelling of 1002503 in words is "one million, two thousand, five hundred three".