144133422421 has 4 divisors (see below), whose sum is σ = 152611859052. Its totient is φ = 135654985792.

The previous prime is 144133422361. The next prime is 144133422427. The reversal of 144133422421 is 124224331441.

It is a happy number.

144133422421 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 86854573521 + 57278848900 = 294711^2 + 239330^2 .

It is a cyclic number.

It is not a de Polignac number, because 144133422421 - 2²¹ = 144131325269 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 (144133422427) 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, 4239218290 + ... + 4239218323.

It is an arithmetic number, because the mean of its divisors is an integer number (38152964763).

Almost surely, 2^144133422421 is an apocalyptic number.

It is an amenable number.

144133422421 is a deficient number, since it is larger than the sum of its proper divisors (8478436631).

144133422421 is an equidigital number, since it uses as much as digits as its factorization.

144133422421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8478436630.

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

Adding to 144133422421 its reverse (124224331441), we get a palindrome (268357753862).

The spelling of 144133422421 in words is "one hundred forty-four billion, one hundred thirty-three million, four hundred twenty-two thousand, four hundred twenty-one".