140044643041 has 4 divisors (see below), whose sum is σ = 143460366084. Its totient is φ = 136628920000.

The previous prime is 140044643023. The next prime is 140044643083. The reversal of 140044643041 is 140346440041.

140044643041 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 25211088400 + 114833554641 = 158780^2 + 338871^2 .

It is a cyclic number.

It is not a de Polignac number, because 140044643041 - 2¹¹ = 140044640993 is a prime.

It is a super-2 number, since 2×140044643041² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 140044642994 and 140044643012.

It is not an unprimeable number, because it can be changed into a prime (140044643021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1707861460 + ... + 1707861541.

It is an arithmetic number, because the mean of its divisors is an integer number (35865091521).

Almost surely, 2^140044643041 is an apocalyptic number.

It is an amenable number.

140044643041 is a deficient number, since it is larger than the sum of its proper divisors (3415723043).

140044643041 is an equidigital number, since it uses as much as digits as its factorization.

140044643041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3415723042.

The product of its (nonzero) digits is 18432, while the sum is 31.

The spelling of 140044643041 in words is "one hundred forty billion, forty-four million, six hundred forty-three thousand, forty-one".