1328543 has 8 divisors (see below), whose sum is σ = 1370880. Its totient is φ = 1287000.

The previous prime is 1328539. The next prime is 1328563. The reversal of 1328543 is 3458231.

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

It is a cyclic number.

It is not a de Polignac number, because 1328543 - 2² = 1328539 is a prime.

It is a Duffinian 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 (1328563) 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, 5168 + ... + 5418.

It is an arithmetic number, because the mean of its divisors is an integer number (171360).

2^1328543 is an apocalyptic number.

1328543 is a deficient number, since it is larger than the sum of its proper divisors (42337).

1328543 is an equidigital number, since it uses as much as digits as its factorization.

1328543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397.

The product of its digits is 2880, while the sum is 26.

The square root of 1328543 is about 1152.6243967572. The cubic root of 1328543 is about 109.9322723578.

The spelling of 1328543 in words is "one million, three hundred twenty-eight thousand, five hundred forty-three".