140730971 has 2 divisors, whose sum is σ = 140730972. Its totient is φ = 140730970.

The previous prime is 140730937. The next prime is 140731057. The reversal of 140730971 is 179037041.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 140730971 - 2⁶ = 140730907 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (140730371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70365485 + 70365486.

It is an arithmetic number, because the mean of its divisors is an integer number (70365486).

Almost surely, 2^140730971 is an apocalyptic number.

140730971 is a deficient number, since it is larger than the sum of its proper divisors (1).

140730971 is an equidigital number, since it uses as much as digits as its factorization.

140730971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5292, while the sum is 32.

The square root of 140730971 is about 11863.0085138636. The cubic root of 140730971 is about 520.1515472986.

The spelling of 140730971 in words is "one hundred forty million, seven hundred thirty thousand, nine hundred seventy-one".