144499321 has 2 divisors, whose sum is σ = 144499322. Its totient is φ = 144499320.

The previous prime is 144499309. The next prime is 144499367. The reversal of 144499321 is 123994441.

144499321 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., 130210921 + 14288400 = 11411^2 + 3780^2 .

It is an emirp because it is prime and its reverse (123994441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 144499321 - 2¹⁷ = 144368249 is a prime.

It is a super-2 number, since 2×144499321² = 41760107538922082, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (144499391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72249660 + 72249661.

It is an arithmetic number, because the mean of its divisors is an integer number (72249661).

Almost surely, 2^144499321 is an apocalyptic number.

It is an amenable number.

144499321 is a deficient number, since it is larger than the sum of its proper divisors (1).

144499321 is an equidigital number, since it uses as much as digits as its factorization.

144499321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 37.

The square root of 144499321 is about 12020.7870374614. The cubic root of 144499321 is about 524.7534092141.

The spelling of 144499321 in words is "one hundred forty-four million, four hundred ninety-nine thousand, three hundred twenty-one".