144660447013 has 2 divisors, whose sum is σ = 144660447014. Its totient is φ = 144660447012.

The previous prime is 144660446971. The next prime is 144660447053. The reversal of 144660447013 is 310744066441.

It is an a-pointer prime, because the next prime (144660447053) can be obtained adding 144660447013 to its sum of digits (40).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 144629611204 + 30835809 = 380302^2 + 5553^2 .

It is a cyclic number.

It is not a de Polignac number, because 144660447013 - 2²¹ = 144658349861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144660447053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72330223506 + 72330223507.

It is an arithmetic number, because the mean of its divisors is an integer number (72330223507).

Almost surely, 2^144660447013 is an apocalyptic number.

It is an amenable number.

144660447013 is a deficient number, since it is larger than the sum of its proper divisors (1).

144660447013 is an equidigital number, since it uses as much as digits as its factorization.

144660447013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 193536, while the sum is 40.

The spelling of 144660447013 in words is "one hundred forty-four billion, six hundred sixty million, four hundred forty-seven thousand, thirteen".