140014431217 has 2 divisors, whose sum is σ = 140014431218. Its totient is φ = 140014431216.

The previous prime is 140014431203. The next prime is 140014431223. The reversal of 140014431217 is 712134410041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 125231762161 + 14782669056 = 353881^2 + 121584^2 .

It is an emirp because it is prime and its reverse (712134410041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140014431217 - 2²⁷ = 139880213489 is a prime.

It is not a weakly prime, because it can be changed into another prime (140014431247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70007215608 + 70007215609.

It is an arithmetic number, because the mean of its divisors is an integer number (70007215609).

Almost surely, 2^140014431217 is an apocalyptic number.

It is an amenable number.

140014431217 is a deficient number, since it is larger than the sum of its proper divisors (1).

140014431217 is an equidigital number, since it uses as much as digits as its factorization.

140014431217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 28.

Adding to 140014431217 its reverse (712134410041), we get a palindrome (852148841258).

The spelling of 140014431217 in words is "one hundred forty billion, fourteen million, four hundred thirty-one thousand, two hundred seventeen".