144771329 has 2 divisors, whose sum is σ = 144771330. Its totient is φ = 144771328.

The previous prime is 144771323. The next prime is 144771331. The reversal of 144771329 is 923177441.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75082225 + 69689104 = 8665^2 + 8348^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144771329 is a prime.

Together with 144771331, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_8166476 and since 144771329 and 8166476 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 144771292 and 144771301.

It is not a weakly prime, because it can be changed into another prime (144771323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72385664 + 72385665.

It is an arithmetic number, because the mean of its divisors is an integer number (72385665).

Almost surely, 2^144771329 is an apocalyptic number.

It is an amenable number.

144771329 is a deficient number, since it is larger than the sum of its proper divisors (1).

144771329 is an equidigital number, since it uses as much as digits as its factorization.

144771329 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 42336, while the sum is 38.

The square root of 144771329 is about 12032.0957858554. The cubic root of 144771329 is about 525.0824710955.

The spelling of 144771329 in words is "one hundred forty-four million, seven hundred seventy-one thousand, three hundred twenty-nine".