13093903 has 4 divisors (see below), whose sum is σ = 13104400. Its totient is φ = 13083408.

The previous prime is 13093879. The next prime is 13093919. The reversal of 13093903 is 30939031.

It is a happy number.

13093903 is digitally balanced in base 3, 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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13093903 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13073903) 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, 3078 + ... + 5971.

It is an arithmetic number, because the mean of its divisors is an integer number (3276100).

Almost surely, 2^13093903 is an apocalyptic number.

13093903 is a deficient number, since it is larger than the sum of its proper divisors (10497).

13093903 is an equidigital number, since it uses as much as digits as its factorization.

13093903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10496.

The product of its (nonzero) digits is 2187, while the sum is 28.

The square root of 13093903 is about 3618.5498476600. The cubic root of 13093903 is about 235.6982581957.

The spelling of 13093903 in words is "thirteen million, ninety-three thousand, nine hundred three".