12543536 has 20 divisors (see below), whose sum is σ = 24498432. Its totient is φ = 6221376.

The previous prime is 12543529. The next prime is 12543551. The reversal of 12543536 is 63534521.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 12543499 and 12543508.

It is an unprimeable number.

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, 1055 + ... + 5118.

Almost surely, 2^12543536 is an apocalyptic number.

12543536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12543536 is a deficient number, since it is larger than the sum of its proper divisors (11954896).

12543536 is a wasteful number, since it uses less digits than its factorization.

12543536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6308 (or 6302 counting only the distinct ones).

The product of its digits is 10800, while the sum is 29.

The square root of 12543536 is about 3541.6854744599. The cubic root of 12543536 is about 232.3485644299.

The spelling of 12543536 in words is "twelve million, five hundred forty-three thousand, five hundred thirty-six".