12163447 has 4 divisors (see below), whose sum is σ = 12393000. Its totient is φ = 11933896.

The previous prime is 12163423. The next prime is 12163519. The reversal of 12163447 is 74436121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74436121 = 479 ⋅155399.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12163447 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12163147) 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, 114697 + ... + 114802.

It is an arithmetic number, because the mean of its divisors is an integer number (3098250).

Almost surely, 2^12163447 is an apocalyptic number.

12163447 is a deficient number, since it is larger than the sum of its proper divisors (229553).

12163447 is an equidigital number, since it uses as much as digits as its factorization.

12163447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229552.

The product of its digits is 4032, while the sum is 28.

The square root of 12163447 is about 3487.6133673330. The cubic root of 12163447 is about 229.9776096666.

Adding to 12163447 its reverse (74436121), we get a palindrome (86599568).

The spelling of 12163447 in words is "twelve million, one hundred sixty-three thousand, four hundred forty-seven".