13280603 has 4 divisors (see below), whose sum is σ = 15177840. Its totient is φ = 11383368.

The previous prime is 13280599. The next prime is 13280647. The reversal of 13280603 is 30608231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30608231 = 4651 ⋅6581.

It is a cyclic number.

It is not a de Polignac number, because 13280603 - 2² = 13280599 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13280653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 948608 + ... + 948621.

It is an arithmetic number, because the mean of its divisors is an integer number (3794460).

Almost surely, 2^13280603 is an apocalyptic number.

13280603 is a deficient number, since it is larger than the sum of its proper divisors (1897237).

13280603 is an equidigital number, since it uses as much as digits as its factorization.

13280603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1897236.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 13280603 is about 3644.2561655295. The cubic root of 13280603 is about 236.8132136965.

Adding to 13280603 its reverse (30608231), we get a palindrome (43888834).

The spelling of 13280603 in words is "thirteen million, two hundred eighty thousand, six hundred three".