13144305453449 has 2 divisors, whose sum is σ = 13144305453450. Its totient is φ = 13144305453448.

The previous prime is 13144305453443. The next prime is 13144305453457. The reversal of 13144305453449 is 94435450344131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13137108985225 + 7196468224 = 3624515^2 + 84832^2 .

It is a cyclic number.

It is not a de Polignac number, because 13144305453449 - 2⁸ = 13144305453193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13144305453397 and 13144305453406.

It is not a weakly prime, because it can be changed into another prime (13144305453443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6572152726724 + 6572152726725.

It is an arithmetic number, because the mean of its divisors is an integer number (6572152726725).

Almost surely, 2^{13144305453449} is an apocalyptic number.

It is an amenable number.

13144305453449 is a deficient number, since it is larger than the sum of its proper divisors (1).

13144305453449 is an equidigital number, since it uses as much as digits as its factorization.

13144305453449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6220800, while the sum is 50.

The spelling of 13144305453449 in words is "thirteen trillion, one hundred forty-four billion, three hundred five million, four hundred fifty-three thousand, four hundred forty-nine".