12163493 has 4 divisors (see below), whose sum is σ = 12202668. Its totient is φ = 12124320.

The previous prime is 12163423. The next prime is 12163519. The reversal of 12163493 is 39436121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39436121 = 3517 ⋅11213.

It can be written as a sum of positive squares in 2 ways, for example, as 4418404 + 7745089 = 2102^2 + 2783^2 .

It is a cyclic number.

It is not a de Polignac number, because 12163493 - 2⁸ = 12163237 is a prime.

It is a super-2 number, since 2×12163493² = 295901123922098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12163423) 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 3 ways as a sum of consecutive naturals, for example, 19118 + ... + 19743.

It is an arithmetic number, because the mean of its divisors is an integer number (3050667).

Almost surely, 2^12163493 is an apocalyptic number.

It is an amenable number.

12163493 is a deficient number, since it is larger than the sum of its proper divisors (39175).

12163493 is an equidigital number, since it uses as much as digits as its factorization.

12163493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39174.

The product of its digits is 3888, while the sum is 29.

The square root of 12163493 is about 3487.6199620945. The cubic root of 12163493 is about 229.9778995778.

The spelling of 12163493 in words is "twelve million, one hundred sixty-three thousand, four hundred ninety-three".