140544024421 has 4 divisors (see below), whose sum is σ = 141250276000. Its totient is φ = 139837772844.

The previous prime is 140544024359. The next prime is 140544024427. The reversal of 140544024421 is 124420445041.

140544024421 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 140544024421 - 2⁹ = 140544023909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140544024427) 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, 353125491 + ... + 353125888.

It is an arithmetic number, because the mean of its divisors is an integer number (35312569000).

Almost surely, 2^140544024421 is an apocalyptic number.

It is an amenable number.

140544024421 is a deficient number, since it is larger than the sum of its proper divisors (706251579).

140544024421 is an equidigital number, since it uses as much as digits as its factorization.

140544024421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 706251578.

The product of its (nonzero) digits is 20480, while the sum is 31.

Adding to 140544024421 its reverse (124420445041), we get a palindrome (264964469462).

The spelling of 140544024421 in words is "one hundred forty billion, five hundred forty-four million, twenty-four thousand, four hundred twenty-one".