12132688 has 20 divisors (see below), whose sum is σ = 23564340. Its totient is φ = 6051584.

The previous prime is 12132683. The next prime is 12132689. The reversal of 12132688 is 88623121.

It can be written as a sum of positive squares in 2 ways, for example, as 6411024 + 5721664 = 2532^2 + 2392^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12132683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9258 + ... + 10486.

It is an arithmetic number, because the mean of its divisors is an integer number (1178217).

Almost surely, 2^12132688 is an apocalyptic number.

It is an amenable number.

12132688 is a deficient number, since it is larger than the sum of its proper divisors (11431652).

12132688 is a wasteful number, since it uses less digits than its factorization.

12132688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1854 (or 1848 counting only the distinct ones).

The product of its digits is 4608, while the sum is 31.

The square root of 12132688 is about 3483.2008268258. The cubic root of 12132688 is about 229.7835897612.

The spelling of 12132688 in words is "twelve million, one hundred thirty-two thousand, six hundred eighty-eight".