140739635838905 has 4 divisors (see below), whose sum is σ = 168887563006692. Its totient is φ = 112591708671120.

The previous prime is 140739635838829. The next prime is 140739635838911. The reversal of 140739635838905 is 509838536937041.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 53244807985216 + 87494827853689 = 7296904^2 + 9353867^2 .

It is not a de Polignac number, because 140739635838905 - 2²⁶ = 140739568730041 is a prime.

It is a super-2 number, since 2×140739635838905² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 14073963583886 + ... + 14073963583895.

It is an arithmetic number, because the mean of its divisors is an integer number (42221890751673).

Almost surely, 2^{140739635838905} is an apocalyptic number.

It is an amenable number.

140739635838905 is a deficient number, since it is larger than the sum of its proper divisors (28147927167787).

140739635838905 is an equidigital number, since it uses as much as digits as its factorization.

140739635838905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28147927167786.

The product of its (nonzero) digits is 587865600, while the sum is 71.

The spelling of 140739635838905 in words is "one hundred forty trillion, seven hundred thirty-nine billion, six hundred thirty-five million, eight hundred thirty-eight thousand, nine hundred five".