144560721751 has 2 divisors, whose sum is σ = 144560721752. Its totient is φ = 144560721750.

The previous prime is 144560721749. The next prime is 144560721763. The reversal of 144560721751 is 157127065441.

It is a weak prime.

It is an emirp because it is prime and its reverse (157127065441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 144560721751 - 2¹ = 144560721749 is a prime.

Together with 144560721749, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 144560721698 and 144560721707.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144560721731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72280360875 + 72280360876.

It is an arithmetic number, because the mean of its divisors is an integer number (72280360876).

Almost surely, 2^144560721751 is an apocalyptic number.

144560721751 is a deficient number, since it is larger than the sum of its proper divisors (1).

144560721751 is an equidigital number, since it uses as much as digits as its factorization.

144560721751 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 235200, while the sum is 43.

The spelling of 144560721751 in words is "one hundred forty-four billion, five hundred sixty million, seven hundred twenty-one thousand, seven hundred fifty-one".