13530543 has 16 divisors (see below), whose sum is σ = 19524960. Its totient is φ = 8285184.

The previous prime is 13530523. The next prime is 13530557. The reversal of 13530543 is 34503531.

It is a happy number.

13530543 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13530543 - 2⁶ = 13530479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13530523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8343 + ... + 9831.

It is an arithmetic number, because the mean of its divisors is an integer number (1220310).

Almost surely, 2^13530543 is an apocalyptic number.

13530543 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13530543 is a deficient number, since it is larger than the sum of its proper divisors (5994417).

13530543 is a wasteful number, since it uses less digits than its factorization.

13530543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1738.

The product of its (nonzero) digits is 2700, while the sum is 24.

The square root of 13530543 is about 3678.3886417832. The cubic root of 13530543 is about 238.2895928771.

The spelling of 13530543 in words is "thirteen million, five hundred thirty thousand, five hundred forty-three".