13260143 has 4 divisors (see below), whose sum is σ = 14280168. Its totient is φ = 12240120.

The previous prime is 13260139. The next prime is 13260151. The reversal of 13260143 is 34106231.

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 13260143 - 2² = 13260139 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 (13260113) 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, 509993 + ... + 510018.

It is an arithmetic number, because the mean of its divisors is an integer number (3570042).

Almost surely, 2^13260143 is an apocalyptic number.

13260143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13260143 is a deficient number, since it is larger than the sum of its proper divisors (1020025).

13260143 is a wasteful number, since it uses less digits than its factorization.

13260143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1020024.

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

The square root of 13260143 is about 3641.4479263062. The cubic root of 13260143 is about 236.6915402894.

Adding to 13260143 its reverse (34106231), we get a palindrome (47366374).

The spelling of 13260143 in words is "thirteen million, two hundred sixty thousand, one hundred forty-three".