12196618 has 16 divisors (see below), whose sum is σ = 21003840. Its totient is φ = 5203296.

The previous prime is 12196603. The next prime is 12196619. The reversal of 12196618 is 81669121.

It is not an unprimeable number, because it can be changed into a prime (12196619) 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 7 ways as a sum of consecutive naturals, for example, 1393 + ... + 5131.

It is an arithmetic number, because the mean of its divisors is an integer number (1312740).

Almost surely, 2^12196618 is an apocalyptic number.

12196618 is a deficient number, since it is larger than the sum of its proper divisors (8807222).

12196618 is a wasteful number, since it uses less digits than its factorization.

12196618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3981.

The product of its digits is 5184, while the sum is 34.

The square root of 12196618 is about 3492.3656738664. The cubic root of 12196618 is about 230.1864776277.

The spelling of 12196618 in words is "twelve million, one hundred ninety-six thousand, six hundred eighteen".