12503432 has 32 divisors (see below), whose sum is σ = 25126200. Its totient is φ = 5812224.

The previous prime is 12503429. The next prime is 12503441. The reversal of 12503432 is 23430521.

It is a happy number.

12503432 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 12348196 + 155236 = 3514^2 + 394^2 .

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

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, 11588 + ... + 12620.

Almost surely, 2^12503432 is an apocalyptic number.

It is an amenable number.

12503432 is an abundant number, since it is smaller than the sum of its proper divisors (12622768).

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

12503432 is a wasteful number, since it uses less digits than its factorization.

12503432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1145 (or 1141 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 12503432 is about 3536.0192307169. The cubic root of 12503432 is about 232.1006796476.

Adding to 12503432 its reverse (23430521), we get a palindrome (35933953).

The spelling of 12503432 in words is "twelve million, five hundred three thousand, four hundred thirty-two".