13206143 has 4 divisors (see below), whose sum is σ = 13213440. Its totient is φ = 13198848.

The previous prime is 13206131. The next prime is 13206173. The reversal of 13206143 is 34160231.

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 not a de Polignac number, because 13206143 - 2¹⁶ = 13140607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13206173) 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, 1346 + ... + 5312.

It is an arithmetic number, because the mean of its divisors is an integer number (3303360).

Almost surely, 2^13206143 is an apocalyptic number.

13206143 is a deficient number, since it is larger than the sum of its proper divisors (7297).

13206143 is an equidigital number, since it uses as much as digits as its factorization.

13206143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7296.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 13206143 is about 3634.0257291329. The cubic root of 13206143 is about 236.3698058861.

Adding to 13206143 its reverse (34160231), we get a palindrome (47366374).

The spelling of 13206143 in words is "thirteen million, two hundred six thousand, one hundred forty-three".