140015262509 has 2 divisors, whose sum is σ = 140015262510. Its totient is φ = 140015262508.

The previous prime is 140015262503. The next prime is 140015262577. The reversal of 140015262509 is 905262510041.

It is a happy number.

140015262509 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., 100014062500 + 40001200009 = 316250^2 + 200003^2 .

It is a cyclic number.

It is not a de Polignac number, because 140015262509 - 2³² = 135720295213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140015262503) 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, 70007631254 + 70007631255.

It is an arithmetic number, because the mean of its divisors is an integer number (70007631255).

Almost surely, 2^140015262509 is an apocalyptic number.

It is an amenable number.

140015262509 is a deficient number, since it is larger than the sum of its proper divisors (1).

140015262509 is an equidigital number, since it uses as much as digits as its factorization.

140015262509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21600, while the sum is 35.

The spelling of 140015262509 in words is "one hundred forty billion, fifteen million, two hundred sixty-two thousand, five hundred nine".