139851411361 has 2 divisors, whose sum is σ = 139851411362. Its totient is φ = 139851411360.

The previous prime is 139851411341. The next prime is 139851411431. The reversal of 139851411361 is 163114158931.

139851411361 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71374465600 + 68476945761 = 267160^2 + 261681^2 .

It is a cyclic number.

It is not a de Polignac number, because 139851411361 - 2¹³ = 139851403169 is a prime.

It is not a weakly prime, because it can be changed into another prime (139851411341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69925705680 + 69925705681.

It is an arithmetic number, because the mean of its divisors is an integer number (69925705681).

Almost surely, 2^139851411361 is an apocalyptic number.

It is an amenable number.

139851411361 is a deficient number, since it is larger than the sum of its proper divisors (1).

139851411361 is an equidigital number, since it uses as much as digits as its factorization.

139851411361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 77760, while the sum is 43.

The spelling of 139851411361 in words is "one hundred thirty-nine billion, eight hundred fifty-one million, four hundred eleven thousand, three hundred sixty-one".