12163444 has 6 divisors (see below), whose sum is σ = 21286034. Its totient is φ = 6081720.

The previous prime is 12163423. The next prime is 12163519. The reversal of 12163444 is 44436121.

It can be written as a sum of positive squares in only one way, i.e., 11971600 + 191844 = 3460^2 + 438^2 .

It is a super-2 number, since 2×12163444² = 295898739882272, which contains 22 as substring.

It is a nialpdrome in base 16.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1520427 + ... + 1520434.

Almost surely, 2^12163444 is an apocalyptic number.

It is an amenable number.

12163444 is a deficient number, since it is larger than the sum of its proper divisors (9122590).

12163444 is a wasteful number, since it uses less digits than its factorization.

12163444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3040865 (or 3040863 counting only the distinct ones).

The product of its digits is 2304, while the sum is 25.

The square root of 12163444 is about 3487.6129372395. The cubic root of 12163444 is about 229.9775907594.

Adding to 12163444 its reverse (44436121), we get a palindrome (56599565).

The spelling of 12163444 in words is "twelve million, one hundred sixty-three thousand, four hundred forty-four".