140730536689 has 2 divisors, whose sum is σ = 140730536690. Its totient is φ = 140730536688.

The previous prime is 140730536641. The next prime is 140730536693. The reversal of 140730536689 is 986635037041.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 137059146225 + 3671390464 = 370215^2 + 60592^2 .

It is a cyclic number.

It is not a de Polignac number, because 140730536689 - 2⁷ = 140730536561 is a prime.

It is not a weakly prime, because it can be changed into another prime (140730536489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70365268344 + 70365268345.

It is an arithmetic number, because the mean of its divisors is an integer number (70365268345).

Almost surely, 2^140730536689 is an apocalyptic number.

It is an amenable number.

140730536689 is a deficient number, since it is larger than the sum of its proper divisors (1).

140730536689 is an equidigital number, since it uses as much as digits as its factorization.

140730536689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3265920, while the sum is 52.

The spelling of 140730536689 in words is "one hundred forty billion, seven hundred thirty million, five hundred thirty-six thousand, six hundred eighty-nine".