144420324133 has 8 divisors (see below), whose sum is σ = 149828427000. Its totient is φ = 139040760768.

The previous prime is 144420324067. The next prime is 144420324149. The reversal of 144420324133 is 331423024441.

It can be written as a sum of positive squares in 4 ways, for example, as 69370077924 + 75050246209 = 263382^2 + 273953^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-144420324133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 144420324095 and 144420324104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144420324163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7124566 + ... + 7144807.

It is an arithmetic number, because the mean of its divisors is an integer number (18728553375).

Almost surely, 2^144420324133 is an apocalyptic number.

It is an amenable number.

144420324133 is a deficient number, since it is larger than the sum of its proper divisors (5408102867).

144420324133 is a wasteful number, since it uses less digits than its factorization.

144420324133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14269751.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 144420324133 its reverse (331423024441), we get a palindrome (475843348574).

The spelling of 144420324133 in words is "one hundred forty-four billion, four hundred twenty million, three hundred twenty-four thousand, one hundred thirty-three".