1328503 has 16 divisors (see below), whose sum is σ = 1555200. Its totient is φ = 1122880.

The previous prime is 1328501. The next prime is 1328507. The reversal of 1328503 is 3058231.

It is not a de Polignac number, because 1328503 - 2¹ = 1328501 is a prime.

It is a Duffinian number.

1328503 is a lucky number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1328501) 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 15 ways as a sum of consecutive naturals, for example, 14883 + ... + 14971.

It is an arithmetic number, because the mean of its divisors is an integer number (97200).

2^1328503 is an apocalyptic number.

1328503 is a deficient number, since it is larger than the sum of its proper divisors (226697).

1328503 is a wasteful number, since it uses less digits than its factorization.

1328503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1328503 is about 1152.6070449203. The cubic root of 1328503 is about 109.9311690602.

The spelling of 1328503 in words is "one million, three hundred twenty-eight thousand, five hundred three".