12543032 has 16 divisors (see below), whose sum is σ = 23562600. Its totient is φ = 6259680.

The previous prime is 12542989. The next prime is 12543053. The reversal of 12543032 is 23034521.

It is a happy number.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 12542995 and 12543013.

It is a congruent number.

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, 4394 + ... + 6662.

Almost surely, 2^12543032 is an apocalyptic number.

It is an amenable number.

12543032 is a deficient number, since it is larger than the sum of its proper divisors (11019568).

12543032 is a wasteful number, since it uses less digits than its factorization.

12543032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2966 (or 2962 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 12543032 is about 3541.6143211818. The cubic root of 12543032 is about 232.3454524620.

Adding to 12543032 its reverse (23034521), we get a palindrome (35577553).

The spelling of 12543032 in words is "twelve million, five hundred forty-three thousand, thirty-two".