129468099 has 4 divisors (see below), whose sum is σ = 172624136. Its totient is φ = 86312064.

The previous prime is 129468091. The next prime is 129468113. The reversal of 129468099 is 990864921.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 129468099 - 2³ = 129468091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129468091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21578014 + ... + 21578019.

It is an arithmetic number, because the mean of its divisors is an integer number (43156034).

Almost surely, 2^129468099 is an apocalyptic number.

129468099 is a deficient number, since it is larger than the sum of its proper divisors (43156037).

129468099 is an equidigital number, since it uses as much as digits as its factorization.

129468099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43156036.

The product of its (nonzero) digits is 279936, while the sum is 48.

The square root of 129468099 is about 11378.4049409397. The cubic root of 129468099 is about 505.8878594049.

The spelling of 129468099 in words is "one hundred twenty-nine million, four hundred sixty-eight thousand, ninety-nine".