144324581 has 2 divisors, whose sum is σ = 144324582. Its totient is φ = 144324580.

The previous prime is 144324553. The next prime is 144324599. The reversal of 144324581 is 185423441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120802081 + 23522500 = 10991^2 + 4850^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144324581 is a prime.

It is a super-2 number, since 2×144324581² = 41659169361651122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144324181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72162290 + 72162291.

It is an arithmetic number, because the mean of its divisors is an integer number (72162291).

Almost surely, 2^144324581 is an apocalyptic number.

It is an amenable number.

144324581 is a deficient number, since it is larger than the sum of its proper divisors (1).

144324581 is an equidigital number, since it uses as much as digits as its factorization.

144324581 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15360, while the sum is 32.

The square root of 144324581 is about 12013.5165959015. The cubic root of 144324581 is about 524.5417994600.

The spelling of 144324581 in words is "one hundred forty-four million, three hundred twenty-four thousand, five hundred eighty-one".