12128533 has 8 divisors (see below), whose sum is σ = 12579840. Its totient is φ = 11681040.

The previous prime is 12128513. The next prime is 12128561. The reversal of 12128533 is 33582121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12128533 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12128498 and 12128507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12128513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6591 + ... + 8227.

It is an arithmetic number, because the mean of its divisors is an integer number (1572480).

Almost surely, 2^12128533 is an apocalyptic number.

It is an amenable number.

12128533 is a deficient number, since it is larger than the sum of its proper divisors (451307).

12128533 is a wasteful number, since it uses less digits than its factorization.

12128533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1907.

The product of its digits is 1440, while the sum is 25.

The square root of 12128533 is about 3482.6043415812. The cubic root of 12128533 is about 229.7573559531.

The spelling of 12128533 in words is "twelve million, one hundred twenty-eight thousand, five hundred thirty-three".