12182158 has 8 divisors (see below), whose sum is σ = 18698328. Its totient is φ = 5949384.

The previous prime is 12182153. The next prime is 12182179. The reversal of 12182158 is 85128121.

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 (12182153) 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, 70741 + ... + 70912.

It is an arithmetic number, because the mean of its divisors is an integer number (2337291).

Almost surely, 2^12182158 is an apocalyptic number.

12182158 is a deficient number, since it is larger than the sum of its proper divisors (6516170).

12182158 is a wasteful number, since it uses less digits than its factorization.

12182158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141698.

The product of its digits is 1280, while the sum is 28.

The square root of 12182158 is about 3490.2948299535. The cubic root of 12182158 is about 230.0954739105.

The spelling of 12182158 in words is "twelve million, one hundred eighty-two thousand, one hundred fifty-eight".