12194812 has 12 divisors (see below), whose sum is σ = 24389680. Its totient is φ = 5226336.

The previous prime is 12194803. The next prime is 12194813. The reversal of 12194812 is 21849121.

12194812 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (28), and also a Moran number because the ratio is a prime number: 435529 = 12194812 / (1 + 2 + 1 + 9 + 4 + 8 + 1 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12194813) 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, 217737 + ... + 217792.

Almost surely, 2^12194812 is an apocalyptic number.

It is an amenable number.

12194812 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12194812 is a wasteful number, since it uses less digits than its factorization.

12194812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435540 (or 435538 counting only the distinct ones).

The product of its digits is 1152, while the sum is 28.

The square root of 12194812 is about 3492.1071003049. The cubic root of 12194812 is about 230.1751155354.

The spelling of 12194812 in words is "twelve million, one hundred ninety-four thousand, eight hundred twelve".