12603242 has 4 divisors (see below), whose sum is σ = 18904866. Its totient is φ = 6301620.

The previous prime is 12603233. The next prime is 12603247. The reversal of 12603242 is 24230621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24230621 = 461 ⋅52561.

It can be written as a sum of positive squares in only one way, i.e., 6497401 + 6105841 = 2549^2 + 2471^2 .

It is not an unprimeable number, because it can be changed into a prime (12603247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3150809 + ... + 3150812.

Almost surely, 2^12603242 is an apocalyptic number.

12603242 is a deficient number, since it is larger than the sum of its proper divisors (6301624).

12603242 is an equidigital number, since it uses as much as digits as its factorization.

12603242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6301623.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 12603242 is about 3550.1045055040. The cubic root of 12603242 is about 232.7166331750.

Adding to 12603242 its reverse (24230621), we get a palindrome (36833863).

The spelling of 12603242 in words is "twelve million, six hundred three thousand, two hundred forty-two".