144720884656613 has 4 divisors (see below), whose sum is σ = 144721364257248. Its totient is φ = 144720405055980.

The previous prime is 144720884656583. The next prime is 144720884656633. The reversal of 144720884656613 is 316656488027441.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 144720884656613 - 2¹⁶ = 144720884591077 is a prime.

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 144720884656613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144720884656633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 239347403 + ... + 239951288.

It is an arithmetic number, because the mean of its divisors is an integer number (36180341064312).

Almost surely, 2^{144720884656613} is an apocalyptic number.

It is an amenable number.

144720884656613 is a deficient number, since it is larger than the sum of its proper divisors (479600635).

144720884656613 is an equidigital number, since it uses as much as digits as its factorization.

144720884656613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479600634.

The product of its (nonzero) digits is 185794560, while the sum is 65.

The spelling of 144720884656613 in words is "one hundred forty-four trillion, seven hundred twenty billion, eight hundred eighty-four million, six hundred fifty-six thousand, six hundred thirteen".