12106642 has 8 divisors (see below), whose sum is σ = 18176256. Its totient is φ = 6047892.

The previous prime is 12106639. The next prime is 12106649. The reversal of 12106642 is 24660121.

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

It is not an unprimeable number, because it can be changed into a prime (12106649) 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 3 ways as a sum of consecutive naturals, for example, 1203 + ... + 5065.

It is an arithmetic number, because the mean of its divisors is an integer number (2272032).

Almost surely, 2^12106642 is an apocalyptic number.

12106642 is a deficient number, since it is larger than the sum of its proper divisors (6069614).

12106642 is a wasteful number, since it uses less digits than its factorization.

12106642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5432.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 12106642 is about 3479.4600155771. The cubic root of 12106642 is about 229.6190416895.

Adding to 12106642 its reverse (24660121), we get a palindrome (36766763).

The spelling of 12106642 in words is "twelve million, one hundred six thousand, six hundred forty-two".