13709543 has 8 divisors (see below), whose sum is σ = 13904880. Its totient is φ = 13515840.

The previous prime is 13709513. The next prime is 13709551. The reversal of 13709543 is 34590731.

It is a happy number.

13709543 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13709543 - 2⁸ = 13709287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13709513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29771 + ... + 30227.

It is an arithmetic number, because the mean of its divisors is an integer number (1738110).

Almost surely, 2^13709543 is an apocalyptic number.

13709543 is a deficient number, since it is larger than the sum of its proper divisors (195337).

13709543 is a wasteful number, since it uses less digits than its factorization.

13709543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817.

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 13709543 is about 3702.6400041052. The cubic root of 13709543 is about 239.3357966053.

The spelling of 13709543 in words is "thirteen million, seven hundred nine thousand, five hundred forty-three".