12128335 has 8 divisors (see below), whose sum is σ = 14801040. Its totient is φ = 9537984.

The previous prime is 12128329. The next prime is 12128339. The reversal of 12128335 is 53382121.

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-12128335 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12128339) 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, 20262 + ... + 20851.

It is an arithmetic number, because the mean of its divisors is an integer number (1850130).

Almost surely, 2^12128335 is an apocalyptic number.

12128335 is a deficient number, since it is larger than the sum of its proper divisors (2672705).

12128335 is an equidigital number, since it uses as much as digits as its factorization.

12128335 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41177.

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

The square root of 12128335 is about 3482.5759144633. The cubic root of 12128335 is about 229.7561056726.

The spelling of 12128335 in words is "twelve million, one hundred twenty-eight thousand, three hundred thirty-five".