1391168363149 has 2 divisors, whose sum is σ = 1391168363150. Its totient is φ = 1391168363148.

The previous prime is 1391168363131. The next prime is 1391168363191. The reversal of 1391168363149 is 9413638611931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1379584146249 + 11584216900 = 1174557^2 + 107630^2 .

It is an emirp because it is prime and its reverse (9413638611931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1391168363149 - 2²¹ = 1391166265997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1391168363149.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1391168313149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 695584181574 + 695584181575.

It is an arithmetic number, because the mean of its divisors is an integer number (695584181575).

Almost surely, 2^{1391168363149} is an apocalyptic number.

It is an amenable number.

1391168363149 is a deficient number, since it is larger than the sum of its proper divisors (1).

1391168363149 is an equidigital number, since it uses as much as digits as its factorization.

1391168363149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2519424, while the sum is 55.

The spelling of 1391168363149 in words is "one trillion, three hundred ninety-one billion, one hundred sixty-eight million, three hundred sixty-three thousand, one hundred forty-nine".