8459144 has 8 divisors (see below), whose sum is σ = 15860910. Its totient is φ = 4229568.

The previous prime is 8459141. The next prime is 8459173. The reversal of 8459144 is 4419548.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 5466244 + 2992900 = 2338^2 + 1730^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (8459141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 528689 + ... + 528704.

Almost surely, 2^8459144 is an apocalyptic number.

It is an amenable number.

8459144 is a deficient number, since it is larger than the sum of its proper divisors (7401766).

8459144 is a wasteful number, since it uses less digits than its factorization.

8459144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1057399 (or 1057395 counting only the distinct ones).

The product of its digits is 23040, while the sum is 35.

The square root of 8459144 is about 2908.4607612963. The cubic root of 8459144 is about 203.7552492155.

The spelling of 8459144 in words is "eight million, four hundred fifty-nine thousand, one hundred forty-four".