13929543 has 16 divisors (see below), whose sum is σ = 20720640. Its totient is φ = 9248472.

The previous prime is 13929529. The next prime is 13929547. The reversal of 13929543 is 34592931.

It is a happy number.

It is not a de Polignac number, because 13929543 - 2⁸ = 13929287 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 13929498 and 13929507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13929547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6730 + ... + 8552.

It is an arithmetic number, because the mean of its divisors is an integer number (1295040).

Almost surely, 2^13929543 is an apocalyptic number.

13929543 is a deficient number, since it is larger than the sum of its proper divisors (6791097).

13929543 is a wasteful number, since it uses less digits than its factorization.

13929543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2115 (or 2109 counting only the distinct ones).

The product of its digits is 29160, while the sum is 36.

The square root of 13929543 is about 3732.2302983605. The cubic root of 13929543 is about 240.6092334191.

The spelling of 13929543 in words is "thirteen million, nine hundred twenty-nine thousand, five hundred forty-three".