144037321 has 2 divisors, whose sum is σ = 144037322. Its totient is φ = 144037320.

The previous prime is 144037319. The next prime is 144037351. The reversal of 144037321 is 123730441.

144037321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 143161225 + 876096 = 11965^2 + 936^2 .

It is a cyclic number.

It is not a de Polignac number, because 144037321 - 2¹ = 144037319 is a prime.

Together with 144037319, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (144037351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72018660 + 72018661.

It is an arithmetic number, because the mean of its divisors is an integer number (72018661).

Almost surely, 2^144037321 is an apocalyptic number.

It is an amenable number.

144037321 is a deficient number, since it is larger than the sum of its proper divisors (1).

144037321 is an equidigital number, since it uses as much as digits as its factorization.

144037321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 144037321 is about 12001.5549409233. The cubic root of 144037321 is about 524.1935567311.

Adding to 144037321 its reverse (123730441), we get a palindrome (267767762).

The spelling of 144037321 in words is "one hundred forty-four million, thirty-seven thousand, three hundred twenty-one".