140412602081 has 2 divisors, whose sum is σ = 140412602082. Its totient is φ = 140412602080.

The previous prime is 140412602041. The next prime is 140412602159. The reversal of 140412602081 is 180206214041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 135383523025 + 5029079056 = 367945^2 + 70916^2 .

It is a cyclic number.

It is not a de Polignac number, because 140412602081 - 2²⁶ = 140345493217 is a prime.

It is a super-2 number, since 2×140412602081² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (140412602021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70206301040 + 70206301041.

It is an arithmetic number, because the mean of its divisors is an integer number (70206301041).

Almost surely, 2^140412602081 is an apocalyptic number.

It is an amenable number.

140412602081 is a deficient number, since it is larger than the sum of its proper divisors (1).

140412602081 is an equidigital number, since it uses as much as digits as its factorization.

140412602081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3072, while the sum is 29.

The spelling of 140412602081 in words is "one hundred forty billion, four hundred twelve million, six hundred two thousand, eighty-one".