12128934 has 8 divisors (see below), whose sum is σ = 24257880. Its totient is φ = 4042976.

The previous prime is 12128929. The next prime is 12128947. The reversal of 12128934 is 43982121.

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

12128934 is an admirable number.

It is a super-2 number, since 2×12128934² = 294222079952712, which contains 22 as substring.

It is a Curzon number.

It is a plaindrome in base 13.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1010739 + ... + 1010750.

It is an arithmetic number, because the mean of its divisors is an integer number (3032235).

Almost surely, 2^12128934 is an apocalyptic number.

12128934 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12128934 is a wasteful number, since it uses less digits than its factorization.

12128934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2021494.

The product of its digits is 3456, while the sum is 30.

The square root of 12128934 is about 3482.6619129626. The cubic root of 12128934 is about 229.7598880451.

The spelling of 12128934 in words is "twelve million, one hundred twenty-eight thousand, nine hundred thirty-four".