12192447 has 4 divisors (see below), whose sum is σ = 16256600. Its totient is φ = 8128296.

The previous prime is 12192437. The next prime is 12192449. The reversal of 12192447 is 74429121.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12192447 - 2¹⁰ = 12191423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12192449) 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, 2032072 + ... + 2032077.

It is an arithmetic number, because the mean of its divisors is an integer number (4064150).

Almost surely, 2^12192447 is an apocalyptic number.

12192447 is a deficient number, since it is larger than the sum of its proper divisors (4064153).

12192447 is an equidigital number, since it uses as much as digits as its factorization.

12192447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4064152.

The product of its digits is 4032, while the sum is 30.

The square root of 12192447 is about 3491.7684631144. The cubic root of 12192447 is about 230.1602349085.

The spelling of 12192447 in words is "twelve million, one hundred ninety-two thousand, four hundred forty-seven".