140143440329 has 2 divisors, whose sum is σ = 140143440330. Its totient is φ = 140143440328.

The previous prime is 140143440251. The next prime is 140143440341. The reversal of 140143440329 is 923044341041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 114868799929 + 25274640400 = 338923^2 + 158980^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140143440329 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (140143440029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70071720164 + 70071720165.

It is an arithmetic number, because the mean of its divisors is an integer number (70071720165).

Almost surely, 2^140143440329 is an apocalyptic number.

It is an amenable number.

140143440329 is a deficient number, since it is larger than the sum of its proper divisors (1).

140143440329 is an equidigital number, since it uses as much as digits as its factorization.

140143440329 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 35.

The spelling of 140143440329 in words is "one hundred forty billion, one hundred forty-three million, four hundred forty thousand, three hundred twenty-nine".