140305349221 has 2 divisors, whose sum is σ = 140305349222. Its totient is φ = 140305349220.

The previous prime is 140305349213. The next prime is 140305349281. The reversal of 140305349221 is 122943503041.

140305349221 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., 138038256225 + 2267092996 = 371535^2 + 47614^2 .

It is a cyclic number.

It is not a de Polignac number, because 140305349221 - 2³ = 140305349213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140305349281) 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, 70152674610 + 70152674611.

It is an arithmetic number, because the mean of its divisors is an integer number (70152674611).

Almost surely, 2^140305349221 is an apocalyptic number.

It is an amenable number.

140305349221 is a deficient number, since it is larger than the sum of its proper divisors (1).

140305349221 is an equidigital number, since it uses as much as digits as its factorization.

140305349221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 34.

The spelling of 140305349221 in words is "one hundred forty billion, three hundred five million, three hundred forty-nine thousand, two hundred twenty-one".