12732665 has 8 divisors (see below), whose sum is σ = 16668288. Its totient is φ = 9260080.

The previous prime is 12732647. The next prime is 12732689. The reversal of 12732665 is 56623721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-12732665 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115697 + ... + 115806.

It is an arithmetic number, because the mean of its divisors is an integer number (2083536).

Almost surely, 2^12732665 is an apocalyptic number.

It is an amenable number.

12732665 is a deficient number, since it is larger than the sum of its proper divisors (3935623).

12732665 is a wasteful number, since it uses less digits than its factorization.

12732665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231519.

The product of its digits is 15120, while the sum is 32.

The square root of 12732665 is about 3568.2860031113. The cubic root of 12732665 is about 233.5105128187.

The spelling of 12732665 in words is "twelve million, seven hundred thirty-two thousand, six hundred sixty-five".