8168144 has 20 divisors (see below), whose sum is σ = 16087140. Its totient is φ = 4016640.

The previous prime is 8168117. The next prime is 8168161. The reversal of 8168144 is 4418618.

It can be written as a sum of positive squares in 2 ways, for example, as 2598544 + 5569600 = 1612^2 + 2360^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 8168144.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3209 + ... + 5160.

It is an arithmetic number, because the mean of its divisors is an integer number (804357).

Almost surely, 2^8168144 is an apocalyptic number.

It is an amenable number.

8168144 is a deficient number, since it is larger than the sum of its proper divisors (7918996).

8168144 is a wasteful number, since it uses less digits than its factorization.

8168144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8438 (or 8432 counting only the distinct ones).

The product of its digits is 6144, while the sum is 32.

The square root of 8168144 is about 2857.9965010475. The cubic root of 8168144 is about 201.3914962386.

The spelling of 8168144 in words is "eight million, one hundred sixty-eight thousand, one hundred forty-four".