144131321 has 8 divisors (see below), whose sum is σ = 160642080. Its totient is φ = 128513088.

The previous prime is 144131311. The next prime is 144131347. The reversal of 144131321 is 123131441.

144131321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 144131321 - 2⁶ = 144131257 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 144131293 and 144131302.

It is not an unprimeable number, because it can be changed into a prime (144131311) 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, 222791 + ... + 223436.

It is an arithmetic number, because the mean of its divisors is an integer number (20080260).

Almost surely, 2^144131321 is an apocalyptic number.

It is an amenable number.

144131321 is a deficient number, since it is larger than the sum of its proper divisors (16510759).

144131321 is a wasteful number, since it uses less digits than its factorization.

144131321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446263.

The product of its digits is 288, while the sum is 20.

The square root of 144131321 is about 12005.4704614188. The cubic root of 144131321 is about 524.3075630154.

Adding to 144131321 its reverse (123131441), we get a palindrome (267262762).

The spelling of 144131321 in words is "one hundred forty-four million, one hundred thirty-one thousand, three hundred twenty-one".