12193649 has 8 divisors (see below), whose sum is σ = 13823040. Its totient is φ = 10663056.

The previous prime is 12193619. The next prime is 12193661. The reversal of 12193649 is 94639121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12193649 - 2⁸ = 12193393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12193619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24437 + ... + 24930.

It is an arithmetic number, because the mean of its divisors is an integer number (1727880).

Almost surely, 2^12193649 is an apocalyptic number.

12193649 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

12193649 is a deficient number, since it is larger than the sum of its proper divisors (1629391).

12193649 is a wasteful number, since it uses less digits than its factorization.

12193649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49399.

The product of its digits is 11664, while the sum is 35.

The square root of 12193649 is about 3491.9405779595. The cubic root of 12193649 is about 230.1677981568.

The spelling of 12193649 in words is "twelve million, one hundred ninety-three thousand, six hundred forty-nine".