13000143 has 8 divisors (see below), whose sum is σ = 18666928. Its totient is φ = 8000064.

The previous prime is 13000139. The next prime is 13000159. The reversal of 13000143 is 34100031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13000143 - 2² = 13000139 is a prime.

It is a Duffinian number.

13000143 is a modest number, since divided by 143 gives 13 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13000133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166630 + ... + 166707.

It is an arithmetic number, because the mean of its divisors is an integer number (2333366).

Almost surely, 2^13000143 is an apocalyptic number.

13000143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13000143 is a deficient number, since it is larger than the sum of its proper divisors (5666785).

13000143 is a wasteful number, since it uses less digits than its factorization.

13000143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333353.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 13000143 is about 3605.5711059415. The cubic root of 13000143 is about 235.1343309250.

Adding to 13000143 its reverse (34100031), we get a palindrome (47100174).

The spelling of 13000143 in words is "thirteen million, one hundred forty-three", and thus it is an aban number.