140310344561 has 2 divisors, whose sum is σ = 140310344562. Its totient is φ = 140310344560.

The previous prime is 140310344491. The next prime is 140310344591. The reversal of 140310344561 is 165443013041.

It is a happy number.

140310344561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 122342550625 + 17967793936 = 349775^2 + 134044^2 .

It is an emirp because it is prime and its reverse (165443013041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140310344561 - 2¹⁸ = 140310082417 is a prime.

It is not a weakly prime, because it can be changed into another prime (140310344591) 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, 70155172280 + 70155172281.

It is an arithmetic number, because the mean of its divisors is an integer number (70155172281).

Almost surely, 2^140310344561 is an apocalyptic number.

It is an amenable number.

140310344561 is a deficient number, since it is larger than the sum of its proper divisors (1).

140310344561 is an equidigital number, since it uses as much as digits as its factorization.

140310344561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 32.

The spelling of 140310344561 in words is "one hundred forty billion, three hundred ten million, three hundred forty-four thousand, five hundred sixty-one".