12208158 has 40 divisors (see below), whose sum is σ = 27573480. Its totient is φ = 4037040.

The previous prime is 12208153. The next prime is 12208169. The reversal of 12208158 is 85180221.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12208153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 28788 + ... + 29208.

It is an arithmetic number, because the mean of its divisors is an integer number (689337).

Almost surely, 2^12208158 is an apocalyptic number.

12208158 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12208158, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13786740).

12208158 is an abundant number, since it is smaller than the sum of its proper divisors (15365322).

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

12208158 is a wasteful number, since it uses less digits than its factorization.

12208158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614 (or 605 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 27.

The square root of 12208158 is about 3494.0174584567. The cubic root of 12208158 is about 230.2590527905.

Adding to 12208158 its reverse (85180221), we get a palindrome (97388379).

The spelling of 12208158 in words is "twelve million, two hundred eight thousand, one hundred fifty-eight".