12194312 has 32 divisors (see below), whose sum is σ = 25296600. Its totient is φ = 5474304.

The previous prime is 12194311. The next prime is 12194317. The reversal of 12194312 is 21349121.

It can be written as a sum of positive squares in 4 ways, for example, as 11792356 + 401956 = 3434^2 + 634^2 .

It is not an unprimeable number, because it can be changed into a prime (12194311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2264 + ... + 5432.

Almost surely, 2^12194312 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 12194312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12648300).

12194312 is an abundant number, since it is smaller than the sum of its proper divisors (13102288).

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

12194312 is a wasteful number, since it uses less digits than its factorization.

12194312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3225 (or 3221 counting only the distinct ones).

The product of its digits is 432, while the sum is 23.

The square root of 12194312 is about 3492.0355095560. The cubic root of 12194312 is about 230.1719696859.

The spelling of 12194312 in words is "twelve million, one hundred ninety-four thousand, three hundred twelve".