13242603 has 18 divisors (see below), whose sum is σ = 19510036. Its totient is φ = 7983800.

The previous prime is 13242587. The next prime is 13242613. The reversal of 13242603 is 30624231.

It is a happy number.

It is not a de Polignac number, because 13242603 - 2⁴ = 13242587 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13242603.

It is not an unprimeable number, because it can be changed into a prime (13242613) 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 in 17 ways as a sum of consecutive naturals, for example, 69238 + ... + 69428.

Almost surely, 2^13242603 is an apocalyptic number.

13242603 is a deficient number, since it is larger than the sum of its proper divisors (6267433).

13242603 is an equidigital number, since it uses as much as digits as its factorization.

13242603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407 (or 205 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 13242603 is about 3639.0387467022. The cubic root of 13242603 is about 236.5871321275.

Adding to 13242603 its reverse (30624231), we get a palindrome (43866834).

The spelling of 13242603 in words is "thirteen million, two hundred forty-two thousand, six hundred three".