140665573813 has 2 divisors, whose sum is σ = 140665573814. Its totient is φ = 140665573812.

The previous prime is 140665573729. The next prime is 140665573819. The reversal of 140665573813 is 318375566041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 139231967044 + 1433606769 = 373138^2 + 37863^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140665573813 is a prime.

It is a super-2 number, since 2×140665573813² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140665573819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70332786906 + 70332786907.

It is an arithmetic number, because the mean of its divisors is an integer number (70332786907).

Almost surely, 2^140665573813 is an apocalyptic number.

It is an amenable number.

140665573813 is a deficient number, since it is larger than the sum of its proper divisors (1).

140665573813 is an equidigital number, since it uses as much as digits as its factorization.

140665573813 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1814400, while the sum is 49.

The spelling of 140665573813 in words is "one hundred forty billion, six hundred sixty-five million, five hundred seventy-three thousand, eight hundred thirteen".