13888143 has 6 divisors (see below), whose sum is σ = 20060664. Its totient is φ = 9258756.

The previous prime is 13888117. The next prime is 13888153. The reversal of 13888143 is 34188831.

It is not a de Polignac number, because 13888143 - 2⁵ = 13888111 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13888098 and 13888107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13888153) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 771555 + ... + 771572.

It is an arithmetic number, because the mean of its divisors is an integer number (3343444).

Almost surely, 2^13888143 is an apocalyptic number.

13888143 is a deficient number, since it is larger than the sum of its proper divisors (6172521).

13888143 is a wasteful number, since it uses less digits than its factorization.

13888143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1543133 (or 1543130 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 13888143 is about 3726.6798896605. The cubic root of 13888143 is about 240.3706252758.

The spelling of 13888143 in words is "thirteen million, eight hundred eighty-eight thousand, one hundred forty-three".