13003143 has 4 divisors (see below), whose sum is σ = 17337528. Its totient is φ = 8668760.

The previous prime is 13003129. The next prime is 13003171. The reversal of 13003143 is 34130031.

13003143 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.

It is a cyclic number.

It is not a de Polignac number, because 13003143 - 2⁴ = 13003127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13003643) 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, 2167188 + ... + 2167193.

It is an arithmetic number, because the mean of its divisors is an integer number (4334382).

Almost surely, 2^13003143 is an apocalyptic number.

13003143 is a deficient number, since it is larger than the sum of its proper divisors (4334385).

13003143 is an equidigital number, since it uses as much as digits as its factorization.

13003143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4334384.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 13003143 is about 3605.9871048022. The cubic root of 13003143 is about 235.1524165911.

Adding to 13003143 its reverse (34130031), we get a palindrome (47133174).

The spelling of 13003143 in words is "thirteen million, three thousand, one hundred forty-three".