140144420441 has 8 divisors (see below), whose sum is σ = 140230326600. Its totient is φ = 140058547200.

The previous prime is 140144420407. The next prime is 140144420447. The reversal of 140144420441 is 144024441041.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1429142416 + 138715278025 = 37804^2 + 372445^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 140144420441 - 2¹⁰ = 140144419417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140144420447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18709625 + ... + 18717113.

It is an arithmetic number, because the mean of its divisors is an integer number (17528790825).

Almost surely, 2^140144420441 is an apocalyptic number.

It is an amenable number.

140144420441 is a deficient number, since it is larger than the sum of its proper divisors (85906159).

140144420441 is an equidigital number, since it uses as much as digits as its factorization.

140144420441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16459.

The product of its (nonzero) digits is 8192, while the sum is 29.

Adding to 140144420441 its reverse (144024441041), we get a palindrome (284168861482).

The spelling of 140144420441 in words is "one hundred forty billion, one hundred forty-four million, four hundred twenty thousand, four hundred forty-one".