140244126457 has 2 divisors, whose sum is σ = 140244126458. Its totient is φ = 140244126456.

The previous prime is 140244126431. The next prime is 140244126499. The reversal of 140244126457 is 754621442041.

140244126457 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., 129323667456 + 10920459001 = 359616^2 + 104501^2 .

It is a cyclic number.

It is not a de Polignac number, because 140244126457 - 2⁷ = 140244126329 is a prime.

It is not a weakly prime, because it can be changed into another prime (140244126557) 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, 70122063228 + 70122063229.

It is an arithmetic number, because the mean of its divisors is an integer number (70122063229).

Almost surely, 2^140244126457 is an apocalyptic number.

It is an amenable number.

140244126457 is a deficient number, since it is larger than the sum of its proper divisors (1).

140244126457 is an equidigital number, since it uses as much as digits as its factorization.

140244126457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 215040, while the sum is 40.

Adding to 140244126457 its reverse (754621442041), we get a palindrome (894865568498).

The spelling of 140244126457 in words is "one hundred forty billion, two hundred forty-four million, one hundred twenty-six thousand, four hundred fifty-seven".