140542321441 has 4 divisors (see below), whose sum is σ = 140765051584. Its totient is φ = 140319591300.

The previous prime is 140542321417. The next prime is 140542321489. The reversal of 140542321441 is 144123245041.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 144123245041 = 36241 ⋅3976801.

It is a cyclic number.

It is not a de Polignac number, because 140542321441 - 2³³ = 131952386849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140542321141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111364125 + ... + 111365386.

It is an arithmetic number, because the mean of its divisors is an integer number (35191262896).

Almost surely, 2^140542321441 is an apocalyptic number.

It is an amenable number.

140542321441 is a deficient number, since it is larger than the sum of its proper divisors (222730143).

140542321441 is an equidigital number, since it uses as much as digits as its factorization.

140542321441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222730142.

The product of its (nonzero) digits is 15360, while the sum is 31.

Adding to 140542321441 its reverse (144123245041), we get a palindrome (284665566482).

The spelling of 140542321441 in words is "one hundred forty billion, five hundred forty-two million, three hundred twenty-one thousand, four hundred forty-one".