12195412 has 12 divisors (see below), whose sum is σ = 21531636. Its totient is φ = 6043520.

The previous prime is 12195401. The next prime is 12195413. The reversal of 12195412 is 21459121.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 662596 + 11532816 = 814^2 + 3396^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12195413) 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 3 ways as a sum of consecutive naturals, for example, 13039 + ... + 13942.

It is an arithmetic number, because the mean of its divisors is an integer number (1794303).

Almost surely, 2^12195412 is an apocalyptic number.

It is an amenable number.

12195412 is a deficient number, since it is larger than the sum of its proper divisors (9336224).

12195412 is a wasteful number, since it uses less digits than its factorization.

12195412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27098 (or 27096 counting only the distinct ones).

The product of its digits is 720, while the sum is 25.

The square root of 12195412 is about 3492.1930072664. The cubic root of 12195412 is about 230.1788904413.

The spelling of 12195412 in words is "twelve million, one hundred ninety-five thousand, four hundred twelve".