140549766257 has 2 divisors, whose sum is σ = 140549766258. Its totient is φ = 140549766256.

The previous prime is 140549766229. The next prime is 140549766293. The reversal of 140549766257 is 752667945041.

It is a happy number.

140549766257 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., 123256464241 + 17293302016 = 351079^2 + 131504^2 .

It is a cyclic number.

It is not a de Polignac number, because 140549766257 - 2⁸ = 140549766001 is a prime.

It is not a weakly prime, because it can be changed into another prime (140549366257) 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, 70274883128 + 70274883129.

It is an arithmetic number, because the mean of its divisors is an integer number (70274883129).

Almost surely, 2^140549766257 is an apocalyptic number.

It is an amenable number.

140549766257 is a deficient number, since it is larger than the sum of its proper divisors (1).

140549766257 is an equidigital number, since it uses as much as digits as its factorization.

140549766257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12700800, while the sum is 56.

The spelling of 140549766257 in words is "one hundred forty billion, five hundred forty-nine million, seven hundred sixty-six thousand, two hundred fifty-seven".