144422539 has 2 divisors, whose sum is σ = 144422540. Its totient is φ = 144422538.

The previous prime is 144422533. The next prime is 144422561. The reversal of 144422539 is 935224441.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 144422539 - 2⁹ = 144422027 is a prime.

It is not a weakly prime, because it can be changed into another prime (144422533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72211269 + 72211270.

It is an arithmetic number, because the mean of its divisors is an integer number (72211270).

Almost surely, 2^144422539 is an apocalyptic number.

144422539 is a deficient number, since it is larger than the sum of its proper divisors (1).

144422539 is an equidigital number, since it uses as much as digits as its factorization.

144422539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 34.

The square root of 144422539 is about 12017.5928954180. The cubic root of 144422539 is about 524.6604474050.

The spelling of 144422539 in words is "one hundred forty-four million, four hundred twenty-two thousand, five hundred thirty-nine".