129046099 has 16 divisors (see below), whose sum is σ = 168170688. Its totient is φ = 96095232.

The previous prime is 129046061. The next prime is 129046103. The reversal of 129046099 is 990640921.

It is a cyclic number.

It is not a de Polignac number, because 129046099 - 2²¹ = 126948947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (129046009) 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, 40162 + ... + 43255.

It is an arithmetic number, because the mean of its divisors is an integer number (10510668).

Almost surely, 2^129046099 is an apocalyptic number.

129046099 is a deficient number, since it is larger than the sum of its proper divisors (39124589).

129046099 is a wasteful number, since it uses less digits than its factorization.

129046099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83454.

The product of its (nonzero) digits is 34992, while the sum is 40.

The square root of 129046099 is about 11359.8459056450. The cubic root of 129046099 is about 505.3376156263.

The spelling of 129046099 in words is "one hundred twenty-nine million, forty-six thousand, ninety-nine".