12199158 has 24 divisors (see below), whose sum is σ = 26507208. Its totient is φ = 4054752.

The previous prime is 12199157. The next prime is 12199189. The reversal of 12199158 is 85199121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12199157) 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 11 ways as a sum of consecutive naturals, for example, 7485 + ... + 8967.

It is an arithmetic number, because the mean of its divisors is an integer number (1104467).

Almost surely, 2^12199158 is an apocalyptic number.

12199158 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12199158 is an abundant number, since it is smaller than the sum of its proper divisors (14308050).

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

12199158 is a wasteful number, since it uses less digits than its factorization.

12199158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1948 (or 1945 counting only the distinct ones).

The product of its digits is 6480, while the sum is 36.

The square root of 12199158 is about 3492.7293052855. The cubic root of 12199158 is about 230.2024556382.

The spelling of 12199158 in words is "twelve million, one hundred ninety-nine thousand, one hundred fifty-eight".