140013004429981 has 2 divisors, whose sum is σ = 140013004429982. Its totient is φ = 140013004429980.

The previous prime is 140013004429967. The next prime is 140013004430041. The reversal of 140013004429981 is 189924400310041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 128796600601881 + 11216403828100 = 11348859^2 + 3349090^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140013004429981 is a prime.

It is a super-2 number, since 2×140013004429981² (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 (140013004421981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70006502214990 + 70006502214991.

It is an arithmetic number, because the mean of its divisors is an integer number (70006502214991).

Almost surely, 2^{140013004429981} is an apocalyptic number.

It is an amenable number.

140013004429981 is a deficient number, since it is larger than the sum of its proper divisors (1).

140013004429981 is an equidigital number, since it uses as much as digits as its factorization.

140013004429981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 248832, while the sum is 46.

The spelling of 140013004429981 in words is "one hundred forty trillion, thirteen billion, four million, four hundred twenty-nine thousand, nine hundred eighty-one".