12681532 has 6 divisors (see below), whose sum is σ = 22192688. Its totient is φ = 6340764.

The previous prime is 12681527. The next prime is 12681577. The reversal of 12681532 is 23518621.

It is a self number, because there is not a number n which added to its sum of digits gives 12681532.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1585188 + ... + 1585195.

Almost surely, 2^12681532 is an apocalyptic number.

It is an amenable number.

12681532 is a deficient number, since it is larger than the sum of its proper divisors (9511156).

12681532 is a wasteful number, since it uses less digits than its factorization.

12681532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3170387 (or 3170385 counting only the distinct ones).

The product of its digits is 2880, while the sum is 28.

The square root of 12681532 is about 3561.1138706871. The cubic root of 12681532 is about 233.1975091602.

The spelling of 12681532 in words is "twelve million, six hundred eighty-one thousand, five hundred thirty-two".