13245603 has 32 divisors (see below), whose sum is σ = 21542400. Its totient is φ = 7070976.

The previous prime is 13245599. The next prime is 13245607. The reversal of 13245603 is 30654231.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13245599) and next prime (13245607).

It is not a de Polignac number, because 13245603 - 2² = 13245599 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13245607) 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 31 ways as a sum of consecutive naturals, for example, 35325 + ... + 35697.

It is an arithmetic number, because the mean of its divisors is an integer number (673200).

Almost surely, 2^13245603 is an apocalyptic number.

13245603 is a deficient number, since it is larger than the sum of its proper divisors (8296797).

13245603 is a wasteful number, since it uses less digits than its factorization.

13245603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 13245603 is about 3639.4509201252. The cubic root of 13245603 is about 236.6049963849.

Adding to 13245603 its reverse (30654231), we get a palindrome (43899834).

The spelling of 13245603 in words is "thirteen million, two hundred forty-five thousand, six hundred three".