144285721508 has 12 divisors (see below), whose sum is σ = 252504116172. Its totient is φ = 72141688320.

The previous prime is 144285721507. The next prime is 144285721519. The reversal of 144285721508 is 805127582441.

It can be written as a sum of positive squares in 2 ways, for example, as 25923576064 + 118362145444 = 161008^2 + 344038^2 .

It is not an unprimeable number, because it can be changed into a prime (144285721501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21248 + ... + 537608.

It is an arithmetic number, because the mean of its divisors is an integer number (21042009681).

Almost surely, 2^144285721508 is an apocalyptic number.

It is an amenable number.

144285721508 is a deficient number, since it is larger than the sum of its proper divisors (108218394664).

144285721508 is a wasteful number, since it uses less digits than its factorization.

144285721508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 586222 (or 586220 counting only the distinct ones).

The product of its (nonzero) digits is 716800, while the sum is 47.

The spelling of 144285721508 in words is "one hundred forty-four billion, two hundred eighty-five million, seven hundred twenty-one thousand, five hundred eight".