12537144 has 96 divisors (see below), whose sum is σ = 36167040. Its totient is φ = 3916800.

The previous prime is 12537121. The next prime is 12537149. The reversal of 12537144 is 44173521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12537149) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 91444 + ... + 91580.

It is an arithmetic number, because the mean of its divisors is an integer number (376740).

Almost surely, 2^12537144 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 12537144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18083520).

12537144 is an abundant number, since it is smaller than the sum of its proper divisors (23629896).

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

12537144 is a wasteful number, since it uses less digits than its factorization.

12537144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221 (or 214 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 12537144 is about 3540.7829642609. The cubic root of 12537144 is about 232.3090905960.

The spelling of 12537144 in words is "twelve million, five hundred thirty-seven thousand, one hundred forty-four".