1328533 has 6 divisors (see below), whose sum is σ = 1411586. Its totient is φ = 1250112.

The previous prime is 1328531. The next prime is 1328539. The reversal of 1328533 is 3358231.

It can be written as a sum of positive squares in 3 ways, for example, as 232324 + 1096209 = 482^2 + 1047^2 .

It is not a de Polignac number, because 1328533 - 2¹ = 1328531 is a prime.

It is a super-3 number, since 3×1328533³ = 7034581964333986311, which contains 333 as substring.

It is a d-powerful number, because it can be written as 1 + 3⁶ + 2²⁰ + 8⁶ + 5⁶ + 3⁶ + 3⁶ .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1328498 and 1328507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1328531) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2010 + ... + 2587.

2^1328533 is an apocalyptic number.

It is an amenable number.

1328533 is a deficient number, since it is larger than the sum of its proper divisors (83053).

1328533 is an equidigital number, since it uses as much as digits as its factorization.

1328533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4631 (or 4614 counting only the distinct ones).

The product of its digits is 2160, while the sum is 25.

The square root of 1328533 is about 1152.6200588225. The cubic root of 1328533 is about 109.9319965355.

The spelling of 1328533 in words is "one million, three hundred twenty-eight thousand, five hundred thirty-three".