729054129 has 16 divisors (see below), whose sum is σ = 1032910272. Its totient is φ = 455820288.

The previous prime is 729054103. The next prime is 729054173. The reversal of 729054129 is 921450927.

It is not a de Polignac number, because 729054129 - 2¹⁶ = 728988593 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (729056129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10824 + ... + 39689.

It is an arithmetic number, because the mean of its divisors is an integer number (64556892).

Almost surely, 2^729054129 is an apocalyptic number.

729054129 is the 14433-rd nonagonal number.

It is an amenable number.

729054129 is a deficient number, since it is larger than the sum of its proper divisors (303856143).

729054129 is a wasteful number, since it uses less digits than its factorization.

729054129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50816.

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 729054129 is about 27001.0023702825. The cubic root of 729054129 is about 900.0222747573.

The spelling of 729054129 in words is "seven hundred twenty-nine million, fifty-four thousand, one hundred twenty-nine".