144812213764 has 9 divisors (see below), whose sum is σ = 253422705991. Its totient is φ = 72405726340.

The previous prime is 144812213753. The next prime is 144812213771. The reversal of 144812213764 is 467312218441.

The square root of 144812213764 is 380542.

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

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 144812213764.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 665949 + ... + 856219.

Almost surely, 2^144812213764 is an apocalyptic number.

144812213764 is the 380542-nd square number.

It is an amenable number.

144812213764 is a deficient number, since it is larger than the sum of its proper divisors (108610492227).

144812213764 is an frugal number, since it uses more digits than its factorization.

144812213764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380546 (or 190273 counting only the distinct ones).

The product of its digits is 258048, while the sum is 43.

The spelling of 144812213764 in words is "one hundred forty-four billion, eight hundred twelve million, two hundred thirteen thousand, seven hundred sixty-four".