12188942 has 8 divisors (see below), whose sum is σ = 19078416. Its totient is φ = 5829472.

The previous prime is 12188941. The next prime is 12188951. The reversal of 12188942 is 24988121.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12188941) 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, 132443 + ... + 132534.

It is an arithmetic number, because the mean of its divisors is an integer number (2384802).

Almost surely, 2^12188942 is an apocalyptic number.

12188942 is a deficient number, since it is larger than the sum of its proper divisors (6889474).

12188942 is a wasteful number, since it uses less digits than its factorization.

12188942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265002.

The product of its digits is 9216, while the sum is 35.

The square root of 12188942 is about 3491.2665323633. The cubic root of 12188942 is about 230.1381778394.

The spelling of 12188942 in words is "twelve million, one hundred eighty-eight thousand, nine hundred forty-two".