140701021559981 has 2 divisors, whose sum is σ = 140701021559982. Its totient is φ = 140701021559980.

The previous prime is 140701021559963. The next prime is 140701021560019. The reversal of 140701021559981 is 189955120107041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96034923667081 + 44666097892900 = 9799741^2 + 6683270^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140701021559981 is a prime.

It is a super-2 number, since 2×140701021559981² (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 (140701021559081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70350510779990 + 70350510779991.

It is an arithmetic number, because the mean of its divisors is an integer number (70350510779991).

Almost surely, 2^{140701021559981} is an apocalyptic number.

It is an amenable number.

140701021559981 is a deficient number, since it is larger than the sum of its proper divisors (1).

140701021559981 is an equidigital number, since it uses as much as digits as its factorization.

140701021559981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 907200, while the sum is 53.

The spelling of 140701021559981 in words is "one hundred forty trillion, seven hundred one billion, twenty-one million, five hundred fifty-nine thousand, nine hundred eighty-one".