12144756 has 48 divisors (see below), whose sum is σ = 30808064. Its totient is φ = 3701376.

The previous prime is 12144751. The next prime is 12144761. The reversal of 12144756 is 65744121.

It is an interprime number because it is at equal distance from previous prime (12144751) and next prime (12144761).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12144751) 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 15 ways as a sum of consecutive naturals, for example, 19506 + ... + 20118.

Almost surely, 2^12144756 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 12144756, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15404032).

12144756 is an abundant number, since it is smaller than the sum of its proper divisors (18663308).

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

12144756 is a wasteful number, since it uses less digits than its factorization.

12144756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 760 (or 758 counting only the distinct ones).

The product of its digits is 6720, while the sum is 30.

The square root of 12144756 is about 3484.9327109716. The cubic root of 12144756 is about 229.8597506651.

Adding to 12144756 its reverse (65744121), we get a palindrome (77888877).

The spelling of 12144756 in words is "twelve million, one hundred forty-four thousand, seven hundred fifty-six".