129804089 has 8 divisors (see below), whose sum is σ = 131473920. Its totient is φ = 128142000.

The previous prime is 129804079. The next prime is 129804091. The reversal of 129804089 is 980408921.

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 129804089 - 2¹² = 129799993 is a prime.

It is a super-2 number, since 2×129804089² = 33698203042239842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129804079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36584 + ... + 39974.

It is an arithmetic number, because the mean of its divisors is an integer number (16434240).

Almost surely, 2^129804089 is an apocalyptic number.

It is an amenable number.

129804089 is a deficient number, since it is larger than the sum of its proper divisors (1669831).

129804089 is a wasteful number, since it uses less digits than its factorization.

129804089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3871.

The product of its (nonzero) digits is 41472, while the sum is 41.

The square root of 129804089 is about 11393.1597460933. The cubic root of 129804089 is about 506.3251008028.

The spelling of 129804089 in words is "one hundred twenty-nine million, eight hundred four thousand, eighty-nine".