12192661 has 8 divisors (see below), whose sum is σ = 13821920. Its totient is φ = 10662192.

The previous prime is 12192659. The next prime is 12192683. The reversal of 12192661 is 16629121.

12192661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12192661 - 2¹ = 12192659 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12192601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24435 + ... + 24928.

It is an arithmetic number, because the mean of its divisors is an integer number (1727740).

Almost surely, 2^12192661 is an apocalyptic number.

It is an amenable number.

12192661 is a deficient number, since it is larger than the sum of its proper divisors (1629259).

12192661 is a wasteful number, since it uses less digits than its factorization.

12192661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49395.

The product of its digits is 1296, while the sum is 28.

The square root of 12192661 is about 3491.7991064779. The cubic root of 12192661 is about 230.1615814799.

The spelling of 12192661 in words is "twelve million, one hundred ninety-two thousand, six hundred sixty-one".