129122133 has 8 divisors (see below), whose sum is σ = 196757568. Its totient is φ = 73784064.

The previous prime is 129122131. The next prime is 129122141. The reversal of 129122133 is 331221921.

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

It is not a de Polignac number, because 129122133 - 2¹ = 129122131 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129122131) 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, 3074316 + ... + 3074357.

It is an arithmetic number, because the mean of its divisors is an integer number (24594696).

Almost surely, 2^129122133 is an apocalyptic number.

It is an amenable number.

129122133 is a deficient number, since it is larger than the sum of its proper divisors (67635435).

129122133 is an equidigital number, since it uses as much as digits as its factorization.

129122133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6148683.

The product of its digits is 648, while the sum is 24.

The square root of 129122133 is about 11363.1920251310. The cubic root of 129122133 is about 505.4368444982.

The spelling of 129122133 in words is "one hundred twenty-nine million, one hundred twenty-two thousand, one hundred thirty-three".