129443 has 2 divisors, whose sum is σ = 129444. Its totient is φ = 129442.

The previous prime is 129439. The next prime is 129449. The reversal of 129443 is 344921.

It is a weak prime.

It is an emirp because it is prime and its reverse (344921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 129443 - 2² = 129439 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a d-powerful number, because it can be written as 1 + 2⁵ + 4⁶ + 9³ + 4⁸ + 3¹⁰ .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 129443.

It is not a weakly prime, because it can be changed into another prime (129449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64721 + 64722.

It is an arithmetic number, because the mean of its divisors is an integer number (64722).

2¹²⁹⁴⁴³ is an apocalyptic number.

129443 is a deficient number, since it is larger than the sum of its proper divisors (1).

129443 is an equidigital number, since it uses as much as digits as its factorization.

129443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 23.

The square root of 129443 is about 359.7818783652. The cubic root of 129443 is about 50.5855166409.

The spelling of 129443 in words is "one hundred twenty-nine thousand, four hundred forty-three".