12678144 has 44 divisors (see below), whose sum is σ = 33800064. Its totient is φ = 4225024.

The previous prime is 12678137. The next prime is 12678151. The reversal of 12678144 is 44187621.

It is an interprime number because it is at equal distance from previous prime (12678137) and next prime (12678151).

It is a congruent number.

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, 1009 + ... + 5135.

Almost surely, 2^12678144 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 12678144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16900032).

12678144 is an abundant number, since it is smaller than the sum of its proper divisors (21121920).

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

12678144 is an equidigital number, since it uses as much as digits as its factorization.

12678144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4150 (or 4132 counting only the distinct ones).

The product of its digits is 10752, while the sum is 33.

The square root of 12678144 is about 3560.6381450521. The cubic root of 12678144 is about 233.1767402833.

The spelling of 12678144 in words is "twelve million, six hundred seventy-eight thousand, one hundred forty-four".