13582543 has 4 divisors (see below), whose sum is σ = 14627368. Its totient is φ = 12537720.

The previous prime is 13582537. The next prime is 13582579. The reversal of 13582543 is 34528531.

13582543 is digitally balanced in base 3, 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, and also an emirpimes, since its reverse is a distinct semiprime: 34528531 = 29 ⋅1190639.

It is not a de Polignac number, because 13582543 - 2²¹ = 11485391 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 (13582243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 522393 + ... + 522418.

It is an arithmetic number, because the mean of its divisors is an integer number (3656842).

Almost surely, 2^13582543 is an apocalyptic number.

13582543 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13582543 is a deficient number, since it is larger than the sum of its proper divisors (1044825).

13582543 is a wasteful number, since it uses less digits than its factorization.

13582543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1044824.

The product of its digits is 14400, while the sum is 31.

The square root of 13582543 is about 3685.4501760301. The cubic root of 13582543 is about 238.5944640869.

The spelling of 13582543 in words is "thirteen million, five hundred eighty-two thousand, five hundred forty-three".