12391168 has 36 divisors (see below), whose sum is σ = 25039000. Its totient is φ = 6119424.

The previous prime is 12391163. The next prime is 12391201. The reversal of 12391168 is 86119321.

It is not an unprimeable number, because it can be changed into a prime (12391163) 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, 24583 + ... + 25081.

Almost surely, 2^12391168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12391168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12519500).

12391168 is an abundant number, since it is smaller than the sum of its proper divisors (12647832).

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

12391168 is an frugal number, since it uses more digits than its factorization.

12391168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612 (or 598 counting only the distinct ones).

The product of its digits is 2592, while the sum is 31.

The square root of 12391168 is about 3520.1090892187. The cubic root of 12391168 is about 231.4039395766.

The spelling of 12391168 in words is "twelve million, three hundred ninety-one thousand, one hundred sixty-eight".