12128133 has 8 divisors (see below), whose sum is σ = 16197568. Its totient is φ = 8072064.

The previous prime is 12128131. The next prime is 12128141. The reversal of 12128133 is 33182121.

12128133 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12128133 - 2¹ = 12128131 is a prime.

It is a super-2 number, since 2×12128133² = 294183220131378, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12128131) 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, 985 + ... + 5022.

It is an arithmetic number, because the mean of its divisors is an integer number (2024696).

Almost surely, 2^12128133 is an apocalyptic number.

It is an amenable number.

12128133 is a deficient number, since it is larger than the sum of its proper divisors (4069435).

12128133 is an equidigital number, since it uses as much as digits as its factorization.

12128133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6683.

The product of its digits is 288, while the sum is 21.

The square root of 12128133 is about 3482.5469128211. The cubic root of 12128133 is about 229.7548301199.

The spelling of 12128133 in words is "twelve million, one hundred twenty-eight thousand, one hundred thirty-three".