13072003 has 4 divisors (see below), whose sum is σ = 14939440. Its totient is φ = 11204568.

The previous prime is 13071979. The next prime is 13072009. The reversal of 13072003 is 30027031.

13072003 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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13072003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13072009) 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, 933708 + ... + 933721.

It is an arithmetic number, because the mean of its divisors is an integer number (3734860).

Almost surely, 2^13072003 is an apocalyptic number.

13072003 is a deficient number, since it is larger than the sum of its proper divisors (1867437).

13072003 is an equidigital number, since it uses as much as digits as its factorization.

13072003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1867436.

The product of its (nonzero) digits is 126, while the sum is 16.

The square root of 13072003 is about 3615.5225071904. The cubic root of 13072003 is about 235.5667804057.

Adding to 13072003 its reverse (30027031), we get a palindrome (43099034).

The spelling of 13072003 in words is "thirteen million, seventy-two thousand, three".