144640474513 has 2 divisors, whose sum is σ = 144640474514. Its totient is φ = 144640474512.

The previous prime is 144640474493. The next prime is 144640474523. The reversal of 144640474513 is 315474046441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 103164300864 + 41476173649 = 321192^2 + 203657^2 .

It is an emirp because it is prime and its reverse (315474046441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 144640474513 - 2³³ = 136050539921 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 144640474513.

It is not a weakly prime, because it can be changed into another prime (144640474523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72320237256 + 72320237257.

It is an arithmetic number, because the mean of its divisors is an integer number (72320237257).

Almost surely, 2^144640474513 is an apocalyptic number.

It is an amenable number.

144640474513 is a deficient number, since it is larger than the sum of its proper divisors (1).

144640474513 is an equidigital number, since it uses as much as digits as its factorization.

144640474513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 645120, while the sum is 43.

The spelling of 144640474513 in words is "one hundred forty-four billion, six hundred forty million, four hundred seventy-four thousand, five hundred thirteen".