13328143 has 4 divisors (see below), whose sum is σ = 13377960. Its totient is φ = 13278328.

The previous prime is 13328141. The next prime is 13328149. The reversal of 13328143 is 34182331.

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 13328143 - 2¹ = 13328141 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 (13328141) 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, 24505 + ... + 25042.

It is an arithmetic number, because the mean of its divisors is an integer number (3344490).

Almost surely, 2^13328143 is an apocalyptic number.

13328143 is a deficient number, since it is larger than the sum of its proper divisors (49817).

13328143 is an equidigital number, since it uses as much as digits as its factorization.

13328143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49816.

The product of its digits is 1728, while the sum is 25.

The square root of 13328143 is about 3650.7729318598. The cubic root of 13328143 is about 237.0954472028.

The spelling of 13328143 in words is "thirteen million, three hundred twenty-eight thousand, one hundred forty-three".