140155440042539 has 2 divisors, whose sum is σ = 140155440042540. Its totient is φ = 140155440042538.

The previous prime is 140155440042437. The next prime is 140155440042551. The reversal of 140155440042539 is 935240044551041.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 140155440042539 - 2⁸ = 140155440042283 is a prime.

It is a super-2 number, since 2×140155440042539² (a number of 29 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 140155440042493 and 140155440042502.

It is not a weakly prime, because it can be changed into another prime (140155440042589) 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, 70077720021269 + 70077720021270.

It is an arithmetic number, because the mean of its divisors is an integer number (70077720021270).

Almost surely, 2^{140155440042539} is an apocalyptic number.

140155440042539 is a deficient number, since it is larger than the sum of its proper divisors (1).

140155440042539 is an equidigital number, since it uses as much as digits as its factorization.

140155440042539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728000, while the sum is 47.

The spelling of 140155440042539 in words is "one hundred forty trillion, one hundred fifty-five billion, four hundred forty million, forty-two thousand, five hundred thirty-nine".