144241132431221 has 6 divisors (see below), whose sum is σ = 167790705073110. Its totient is φ = 123635256369576.

The previous prime is 144241132431211. The next prime is 144241132431251. The reversal of 144241132431221 is 122134231142441.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 107348020870321 + 36893111560900 = 10360889^2 + 6073970^2 .

It is not a de Polignac number, because 144241132431221 - 2⁶ = 144241132431157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144241132431211) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1471848290066 + ... + 1471848290163.

It is an arithmetic number, because the mean of its divisors is an integer number (27965117512185).

Almost surely, 2^{144241132431221} is an apocalyptic number.

It is an amenable number.

144241132431221 is a deficient number, since it is larger than the sum of its proper divisors (23549572641889).

144241132431221 is an equidigital number, since it uses as much as digits as its factorization.

144241132431221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2943696580243 (or 2943696580236 counting only the distinct ones).

The product of its digits is 36864, while the sum is 35.

Adding to 144241132431221 its reverse (122134231142441), we get a palindrome (266375363573662).

The spelling of 144241132431221 in words is "one hundred forty-four trillion, two hundred forty-one billion, one hundred thirty-two million, four hundred thirty-one thousand, two hundred twenty-one".