12981248 has 44 divisors (see below), whose sum is σ = 29673312. Its totient is φ = 5560320.

The previous prime is 12981233. The next prime is 12981253. The reversal of 12981248 is 84218921.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6263 + ... + 8073.

Almost surely, 2^12981248 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 12981248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14836656).

12981248 is an abundant number, since it is smaller than the sum of its proper divisors (16692064).

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

12981248 is an equidigital number, since it uses as much as digits as its factorization.

12981248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1838 (or 1820 counting only the distinct ones).

The product of its digits is 9216, while the sum is 35.

The square root of 12981248 is about 3602.9499025104. The cubic root of 12981248 is about 235.0203573733.

The spelling of 12981248 in words is "twelve million, nine hundred eighty-one thousand, two hundred forty-eight".