12432503 has 6 divisors (see below), whose sum is σ = 12876864. Its totient is φ = 12002984.

The previous prime is 12432493. The next prime is 12432509. The reversal of 12432503 is 30523421.

It is a happy number.

It is not a de Polignac number, because 12432503 - 2⁸ = 12432247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12432509) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6551 + ... + 8232.

It is an arithmetic number, because the mean of its divisors is an integer number (2146144).

Almost surely, 2^12432503 is an apocalyptic number.

12432503 is a deficient number, since it is larger than the sum of its proper divisors (444361).

12432503 is an equidigital number, since it uses as much as digits as its factorization.

12432503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14841 (or 14812 counting only the distinct ones).

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

The square root of 12432503 is about 3525.9754678670. The cubic root of 12432503 is about 231.6609631178.

Adding to 12432503 its reverse (30523421), we get a palindrome (42955924).

The spelling of 12432503 in words is "twelve million, four hundred thirty-two thousand, five hundred three".