140043666001493 has 2 divisors, whose sum is σ = 140043666001494. Its totient is φ = 140043666001492.

The previous prime is 140043666001471. The next prime is 140043666001537. The reversal of 140043666001493 is 394100666340041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72181625184529 + 67862040816964 = 8495977^2 + 8237842^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140043666001493 is a prime.

It is a super-2 number, since 2×140043666001493² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140043666001423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70021833000746 + 70021833000747.

It is an arithmetic number, because the mean of its divisors is an integer number (70021833000747).

Almost surely, 2^{140043666001493} is an apocalyptic number.

It is an amenable number.

140043666001493 is a deficient number, since it is larger than the sum of its proper divisors (1).

140043666001493 is an equidigital number, since it uses as much as digits as its factorization.

140043666001493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1119744, while the sum is 47.

The spelling of 140043666001493 in words is "one hundred forty trillion, forty-three billion, six hundred sixty-six million, one thousand, four hundred ninety-three".