12603144 has 32 divisors (see below), whose sum is σ = 32181120. Its totient is φ = 4111296.

The previous prime is 12603133. The next prime is 12603161. The reversal of 12603144 is 44130621.

It is a self number, because there is not a number n which added to its sum of digits gives 12603144.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4459 + ... + 6714.

It is an arithmetic number, because the mean of its divisors is an integer number (1005660).

Almost surely, 2^12603144 is an apocalyptic number.

It is an amenable number.

12603144 is an abundant number, since it is smaller than the sum of its proper divisors (19577976).

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

12603144 is a wasteful number, since it uses less digits than its factorization.

12603144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11229 (or 11225 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 12603144 is about 3550.0907030666. The cubic root of 12603144 is about 232.7160299893.

Adding to 12603144 its reverse (44130621), we get a palindrome (56733765).

The spelling of 12603144 in words is "twelve million, six hundred three thousand, one hundred forty-four".