12543532 has 6 divisors (see below), whose sum is σ = 21951188. Its totient is φ = 6271764.

The previous prime is 12543529. The next prime is 12543551. The reversal of 12543532 is 23534521.

It is a junction number, because it is equal to n+sod(n) for n = 12543497 and 12543506.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1567938 + ... + 1567945.

Almost surely, 2^12543532 is an apocalyptic number.

It is an amenable number.

12543532 is a deficient number, since it is larger than the sum of its proper divisors (9407656).

12543532 is a wasteful number, since it uses less digits than its factorization.

12543532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3135887 (or 3135885 counting only the distinct ones).

The product of its digits is 3600, while the sum is 25.

The square root of 12543532 is about 3541.6849097569. The cubic root of 12543532 is about 232.3485397321.

The spelling of 12543532 in words is "twelve million, five hundred forty-three thousand, five hundred thirty-two".