140412830331817 has 2 divisors, whose sum is σ = 140412830331818. Its totient is φ = 140412830331816.

The previous prime is 140412830331773. The next prime is 140412830331901. The reversal of 140412830331817 is 718133038214041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 124739949039616 + 15672881292201 = 11168704^2 + 3958899^2 .

It is a cyclic number.

It is not a de Polignac number, because 140412830331817 - 2⁷ = 140412830331689 is a prime.

It is not a weakly prime, because it can be changed into another prime (140412830338817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70206415165908 + 70206415165909.

It is an arithmetic number, because the mean of its divisors is an integer number (70206415165909).

Almost surely, 2^{140412830331817} is an apocalyptic number.

It is an amenable number.

140412830331817 is a deficient number, since it is larger than the sum of its proper divisors (1).

140412830331817 is an equidigital number, since it uses as much as digits as its factorization.

140412830331817 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 387072, while the sum is 46.

Adding to 140412830331817 its reverse (718133038214041), we get a palindrome (858545868545858).

The spelling of 140412830331817 in words is "one hundred forty trillion, four hundred twelve billion, eight hundred thirty million, three hundred thirty-one thousand, eight hundred seventeen".