129043369 has 8 divisors (see below), whose sum is σ = 158822720. Its totient is φ = 102100176.

The previous prime is 129043361. The next prime is 129043373. The reversal of 129043369 is 963340921.

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 129043369 - 2³ = 129043361 is a prime.

It is a super-2 number, since 2×129043369² = 33304382165740322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (129043361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 708939 + ... + 709120.

It is an arithmetic number, because the mean of its divisors is an integer number (19852840).

Almost surely, 2^129043369 is an apocalyptic number.

It is an amenable number.

129043369 is a deficient number, since it is larger than the sum of its proper divisors (29779351).

129043369 is a wasteful number, since it uses less digits than its factorization.

129043369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1418079.

The product of its (nonzero) digits is 34992, while the sum is 37.

The square root of 129043369 is about 11359.7257449289. The cubic root of 129043369 is about 505.3340520899.

The spelling of 129043369 in words is "one hundred twenty-nine million, forty-three thousand, three hundred sixty-nine".