129119329 has 8 divisors (see below), whose sum is σ = 130593320. Its totient is φ = 127650816.

The previous prime is 129119327. The next prime is 129119399. The reversal of 129119329 is 923911921.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 73273600 + 55845729 = 8560^2 + 7473^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 129119329 - 2¹ = 129119327 is a prime.

It is a super-2 number, since 2×129119329² = 33343602242820482, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129119321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61867 + ... + 63919.

It is an arithmetic number, because the mean of its divisors is an integer number (16324165).

Almost surely, 2^129119329 is an apocalyptic number.

It is an amenable number.

129119329 is a deficient number, since it is larger than the sum of its proper divisors (1473991).

129119329 is a wasteful number, since it uses less digits than its factorization.

129119329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2739.

The product of its digits is 8748, while the sum is 37.

The square root of 129119329 is about 11363.0686436367. The cubic root of 129119329 is about 505.4331858041.

The spelling of 129119329 in words is "one hundred twenty-nine million, one hundred nineteen thousand, three hundred twenty-nine".