299129143329 has 9 divisors (see below), whose sum is σ = 432077799283. Its totient is φ = 199418335032.

The previous prime is 299129143301. The next prime is 299129143331. The reversal of 299129143329 is 923341921992.

The square root of 299129143329 is 546927.

It is a perfect power (a square), and thus also a powerful number.

299129143329 is a `hidden beast` number, since 2 + 99 + 12 + 91 + 433 + 29 = 666.

It can be written as a sum of positive squares in only one way, i.e., 272042566929 + 27086576400 = 521577^2 + 164580^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 299129143329 - 2⁹ = 299129142817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (299129142329) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1549627 + ... + 1731935.

Almost surely, 2^299129143329 is an apocalyptic number.

299129143329 is the 546927-th square number.

299129143329 is the 273464-th centered octagonal number.

It is an amenable number.

299129143329 is a deficient number, since it is larger than the sum of its proper divisors (132948655954).

299129143329 is an frugal number, since it uses more digits than its factorization.

299129143329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364624 (or 182312 counting only the distinct ones).

The product of its digits is 1889568, while the sum is 54.

The spelling of 299129143329 in words is "two hundred ninety-nine billion, one hundred twenty-nine million, one hundred forty-three thousand, three hundred twenty-nine".