12504168 has 24 divisors (see below), whose sum is σ = 33865650. Its totient is φ = 4168032.

The previous prime is 12504161. The next prime is 12504169. The reversal of 12504168 is 86140521.

It can be written as a sum of positive squares in only one way, i.e., 7387524 + 5116644 = 2718^2 + 2262^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (12504161) 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 5 ways as a sum of consecutive naturals, for example, 86763 + ... + 86906.

Almost surely, 2^12504168 is an apocalyptic number.

12504168 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12504168 is an abundant number, since it is smaller than the sum of its proper divisors (21361482).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12504168 is a wasteful number, since it uses less digits than its factorization.

12504168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173681 (or 173674 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 12504168 is about 3536.1233010177. The cubic root of 12504168 is about 232.1052336705.

Adding to 12504168 its reverse (86140521), we get a palindrome (98644689).

The spelling of 12504168 in words is "twelve million, five hundred four thousand, one hundred sixty-eight".