12179681 has 8 divisors (see below), whose sum is σ = 12702720. Its totient is φ = 11663568.

The previous prime is 12179677. The next prime is 12179689. The reversal of 12179681 is 18697121.

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

It is not a de Polignac number, because 12179681 - 2² = 12179677 is a prime.

It is a super-2 number, since 2×12179681² = 296689258523522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12179689) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2030 + ... + 5336.

It is an arithmetic number, because the mean of its divisors is an integer number (1587840).

Almost surely, 2^12179681 is an apocalyptic number.

It is an amenable number.

12179681 is a deficient number, since it is larger than the sum of its proper divisors (523039).

12179681 is a wasteful number, since it uses less digits than its factorization.

12179681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3463.

The product of its digits is 6048, while the sum is 35.

The square root of 12179681 is about 3489.9399708304. The cubic root of 12179681 is about 230.0798777377.

The spelling of 12179681 in words is "twelve million, one hundred seventy-nine thousand, six hundred eighty-one".