13936543 has 4 divisors (see below), whose sum is σ = 13945840. Its totient is φ = 13927248.

The previous prime is 13936537. The next prime is 13936547. The reversal of 13936543 is 34563931.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 13936543 - 2⁹ = 13936031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13936499 and 13936508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13936547) 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, 1830 + ... + 5587.

It is an arithmetic number, because the mean of its divisors is an integer number (3486460).

Almost surely, 2^13936543 is an apocalyptic number.

13936543 is a deficient number, since it is larger than the sum of its proper divisors (9297).

13936543 is an equidigital number, since it uses as much as digits as its factorization.

13936543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9296.

The product of its digits is 29160, while the sum is 34.

The square root of 13936543 is about 3733.1679576467. The cubic root of 13936543 is about 240.6495310460.

The spelling of 13936543 in words is "thirteen million, nine hundred thirty-six thousand, five hundred forty-three".