12166842 has 8 divisors (see below), whose sum is σ = 24333696. Its totient is φ = 4055612.

The previous prime is 12166841. The next prime is 12166853. The reversal of 12166842 is 24866121.

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

12166842 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (12166841) 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, 1013898 + ... + 1013909.

It is an arithmetic number, because the mean of its divisors is an integer number (3041712).

Almost surely, 2^12166842 is an apocalyptic number.

12166842 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12166842 is a wasteful number, since it uses less digits than its factorization.

12166842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2027812.

The product of its digits is 4608, while the sum is 30.

The square root of 12166842 is about 3488.1000559044. The cubic root of 12166842 is about 229.9990044065. Note that the first 3 decimals are identical.

The spelling of 12166842 in words is "twelve million, one hundred sixty-six thousand, eight hundred forty-two".