13541543 has 4 divisors (see below), whose sum is σ = 13555368. Its totient is φ = 13527720.

The previous prime is 13541497. The next prime is 13541569. The reversal of 13541543 is 34514531.

13541543 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 13541543 - 2¹⁰ = 13540519 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 (13541443) 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, 5321 + ... + 7442.

It is an arithmetic number, because the mean of its divisors is an integer number (3388842).

Almost surely, 2^13541543 is an apocalyptic number.

13541543 is a deficient number, since it is larger than the sum of its proper divisors (13825).

13541543 is a wasteful number, since it uses less digits than its factorization.

13541543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13824.

The product of its digits is 3600, while the sum is 26.

The square root of 13541543 is about 3679.8835579404. The cubic root of 13541543 is about 238.3541499197.

The spelling of 13541543 in words is "thirteen million, five hundred forty-one thousand, five hundred forty-three".