140056265509 has 2 divisors, whose sum is σ = 140056265510. Its totient is φ = 140056265508.

The previous prime is 140056265477. The next prime is 140056265551. The reversal of 140056265509 is 905562650041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 136048109409 + 4008156100 = 368847^2 + 63310^2 .

It is a cyclic number.

It is not a de Polignac number, because 140056265509 - 2⁵ = 140056265477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140056265579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70028132754 + 70028132755.

It is an arithmetic number, because the mean of its divisors is an integer number (70028132755).

Almost surely, 2^140056265509 is an apocalyptic number.

It is an amenable number.

140056265509 is a deficient number, since it is larger than the sum of its proper divisors (1).

140056265509 is an equidigital number, since it uses as much as digits as its factorization.

140056265509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324000, while the sum is 43.

The spelling of 140056265509 in words is "one hundred forty billion, fifty-six million, two hundred sixty-five thousand, five hundred nine".