13345603 has 4 divisors (see below), whose sum is σ = 13629600. Its totient is φ = 13061608.

The previous prime is 13345573. The next prime is 13345613. The reversal of 13345603 is 30654331.

13345603 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30654331 = 23 ⋅1332797.

It is a cyclic number.

It is not a de Polignac number, because 13345603 - 2⁵ = 13345571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13345613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141928 + ... + 142021.

It is an arithmetic number, because the mean of its divisors is an integer number (3407400).

Almost surely, 2^13345603 is an apocalyptic number.

13345603 is a deficient number, since it is larger than the sum of its proper divisors (283997).

13345603 is an equidigital number, since it uses as much as digits as its factorization.

13345603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283996.

The product of its (nonzero) digits is 3240, while the sum is 25.

The square root of 13345603 is about 3653.1634236645. The cubic root of 13345603 is about 237.1989344914.

Adding to 13345603 its reverse (30654331), we get a palindrome (43999934).

The spelling of 13345603 in words is "thirteen million, three hundred forty-five thousand, six hundred three".