12127232 has 44 divisors (see below), whose sum is σ = 26136096. Its totient is φ = 5591040.

The previous prime is 12127223. The next prime is 12127243. The reversal of 12127232 is 23272121.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12857 + ... + 13767.

Almost surely, 2^12127232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12127232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13068048).

12127232 is an abundant number, since it is smaller than the sum of its proper divisors (14008864).

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

12127232 is an equidigital number, since it uses as much as digits as its factorization.

12127232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 944 (or 926 counting only the distinct ones).

The product of its digits is 336, while the sum is 20.

The square root of 12127232 is about 3482.4175510699. The cubic root of 12127232 is about 229.7491404773.

Adding to 12127232 its reverse (23272121), we get a palindrome (35399353).

The spelling of 12127232 in words is "twelve million, one hundred twenty-seven thousand, two hundred thirty-two".