12480144 has 20 divisors (see below), whose sum is σ = 32240496. Its totient is φ = 4160032.

The previous prime is 12480133. The next prime is 12480161. The reversal of 12480144 is 44108421.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129954 + ... + 130049.

Almost surely, 2^12480144 is an apocalyptic number.

It is an amenable number.

12480144 is an abundant number, since it is smaller than the sum of its proper divisors (19760352).

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

12480144 is a wasteful number, since it uses less digits than its factorization.

12480144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260014 (or 260008 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

The square root of 12480144 is about 3532.7247274590. The cubic root of 12480144 is about 231.9564920395.

Adding to 12480144 its reverse (44108421), we get a palindrome (56588565).

The spelling of 12480144 in words is "twelve million, four hundred eighty thousand, one hundred forty-four".