144320056 has 8 divisors (see below), whose sum is σ = 270600120. Its totient is φ = 72160024.

The previous prime is 144320039. The next prime is 144320069. The reversal of 144320056 is 650023441.

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

It is a self number, because there is not a number n which added to its sum of digits gives 144320056.

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 as a sum of consecutive naturals, namely, 9019996 + ... + 9020011.

It is an arithmetic number, because the mean of its divisors is an integer number (33825015).

Almost surely, 2^144320056 is an apocalyptic number.

It is an amenable number.

144320056 is a deficient number, since it is larger than the sum of its proper divisors (126280064).

144320056 is a wasteful number, since it uses less digits than its factorization.

144320056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18040013 (or 18040009 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 144320056 is about 12013.3282648898. The cubic root of 144320056 is about 524.5363174268.

Adding to 144320056 its reverse (650023441), we get a palindrome (794343497).

It can be divided in two parts, 144 and 320056, that multiplied together give a palindrome (46088064).

The spelling of 144320056 in words is "one hundred forty-four million, three hundred twenty thousand, fifty-six".