144247428761 has 2 divisors, whose sum is σ = 144247428762. Its totient is φ = 144247428760.

The previous prime is 144247428713. The next prime is 144247428769. The reversal of 144247428761 is 167824742441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 142706395225 + 1541033536 = 377765^2 + 39256^2 .

It is a cyclic number.

It is not a de Polignac number, because 144247428761 - 2¹⁴ = 144247412377 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (144247428769) by changing a digit.

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 as a sum of consecutive naturals, namely, 72123714380 + 72123714381.

It is an arithmetic number, because the mean of its divisors is an integer number (72123714381).

Almost surely, 2^144247428761 is an apocalyptic number.

It is an amenable number.

144247428761 is a deficient number, since it is larger than the sum of its proper divisors (1).

144247428761 is an equidigital number, since it uses as much as digits as its factorization.

144247428761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2408448, while the sum is 50.

The spelling of 144247428761 in words is "one hundred forty-four billion, two hundred forty-seven million, four hundred twenty-eight thousand, seven hundred sixty-one".