140121531990289 has 2 divisors, whose sum is σ = 140121531990290. Its totient is φ = 140121531990288.

The previous prime is 140121531990269. The next prime is 140121531990311. The reversal of 140121531990289 is 982099135121041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 124424721903889 + 15696810086400 = 11154583^2 + 3961920^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140121531990289 is a prime.

It is not a weakly prime, because it can be changed into another prime (140121531990269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70060765995144 + 70060765995145.

It is an arithmetic number, because the mean of its divisors is an integer number (70060765995145).

Almost surely, 2^{140121531990289} is an apocalyptic number.

It is an amenable number.

140121531990289 is a deficient number, since it is larger than the sum of its proper divisors (1).

140121531990289 is an equidigital number, since it uses as much as digits as its factorization.

140121531990289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1399680, while the sum is 55.

The spelling of 140121531990289 in words is "one hundred forty trillion, one hundred twenty-one billion, five hundred thirty-one million, nine hundred ninety thousand, two hundred eighty-nine".