12543528 has 32 divisors (see below), whose sum is σ = 31520160. Its totient is φ = 4159680.

The previous prime is 12543523. The next prime is 12543529. The reversal of 12543528 is 82534521.

It is a junction number, because it is equal to n+sod(n) for n = 12543495 and 12543504.

It is not an unprimeable number, because it can be changed into a prime (12543521) 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 7 ways as a sum of consecutive naturals, for example, 3826 + ... + 6302.

It is an arithmetic number, because the mean of its divisors is an integer number (985005).

Almost surely, 2^12543528 is an apocalyptic number.

It is an amenable number.

12543528 is an abundant number, since it is smaller than the sum of its proper divisors (18976632).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12543528 is a wasteful number, since it uses less digits than its factorization.

12543528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2697 (or 2693 counting only the distinct ones).

The product of its digits is 9600, while the sum is 30.

The square root of 12543528 is about 3541.6843450539. The cubic root of 12543528 is about 232.3485150342.

The spelling of 12543528 in words is "twelve million, five hundred forty-three thousand, five hundred twenty-eight".