144865494544 has 15 divisors (see below), whose sum is σ = 280679845453. Its totient is φ = 72431986048.

The previous prime is 144865494541. The next prime is 144865494559. The reversal of 144865494544 is 445494568441.

The square root of 144865494544 is 380612.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 143110890000 + 1754604544 = 378300^2 + 41888^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144865494541) 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 2 ways as a sum of consecutive naturals, for example, 1474872 + ... + 1570024.

Almost surely, 2^144865494544 is an apocalyptic number.

144865494544 is the 380612-nd square number.

It is an amenable number.

144865494544 is a deficient number, since it is larger than the sum of its proper divisors (135814350909).

144865494544 is an frugal number, since it uses more digits than its factorization.

144865494544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190314 (or 95155 counting only the distinct ones).

The product of its digits is 44236800, while the sum is 58.

The spelling of 144865494544 in words is "one hundred forty-four billion, eight hundred sixty-five million, four hundred ninety-four thousand, five hundred forty-four".