12194564 has 12 divisors (see below), whose sum is σ = 21367500. Its totient is φ = 6089568.

The previous prime is 12194551. The next prime is 12194569. The reversal of 12194564 is 46549121.

It can be written as a sum of positive squares in 2 ways, for example, as 688900 + 11505664 = 830^2 + 3392^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12194564.

It is not an unprimeable number, because it can be changed into a prime (12194569) 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, 3062 + ... + 5810.

It is an arithmetic number, because the mean of its divisors is an integer number (1780625).

Almost surely, 2^12194564 is an apocalyptic number.

It is an amenable number.

12194564 is a deficient number, since it is larger than the sum of its proper divisors (9172936).

12194564 is a wasteful number, since it uses less digits than its factorization.

12194564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3862 (or 3860 counting only the distinct ones).

The product of its digits is 8640, while the sum is 32.

The square root of 12194564 is about 3492.0715914769. The cubic root of 12194564 is about 230.1735552048.

The spelling of 12194564 in words is "twelve million, one hundred ninety-four thousand, five hundred sixty-four".