729143 has 2 divisors, whose sum is σ = 729144. Its totient is φ = 729142.

The previous prime is 729139. The next prime is 729173. The reversal of 729143 is 341927.

It is a weak prime.

It is an emirp because it is prime and its reverse (341927) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 729143 - 2² = 729139 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (729173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 364571 + 364572.

It is an arithmetic number, because the mean of its divisors is an integer number (364572).

2⁷²⁹¹⁴³ is an apocalyptic number.

729143 is a deficient number, since it is larger than the sum of its proper divisors (1).

729143 is an equidigital number, since it uses as much as digits as its factorization.

729143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1512, while the sum is 26.

The square root of 729143 is about 853.8987059365. The cubic root of 729143 is about 90.0058843889.

The spelling of 729143 in words is "seven hundred twenty-nine thousand, one hundred forty-three".