140501665243 has 2 divisors, whose sum is σ = 140501665244. Its totient is φ = 140501665242.

The previous prime is 140501665223. The next prime is 140501665267. The reversal of 140501665243 is 342566105041.

140501665243 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 is an emirp because it is prime and its reverse (342566105041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140501665243 - 2⁹ = 140501664731 is a prime.

It is not a weakly prime, because it can be changed into another prime (140501665223) 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, 70250832621 + 70250832622.

It is an arithmetic number, because the mean of its divisors is an integer number (70250832622).

Almost surely, 2^140501665243 is an apocalyptic number.

140501665243 is a deficient number, since it is larger than the sum of its proper divisors (1).

140501665243 is an equidigital number, since it uses as much as digits as its factorization.

140501665243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86400, while the sum is 37.

The spelling of 140501665243 in words is "one hundred forty billion, five hundred one million, six hundred sixty-five thousand, two hundred forty-three".