129233277 has 12 divisors (see below), whose sum is σ = 189300384. Its totient is φ = 84941640.

The previous prime is 129233263. The next prime is 129233281. The reversal of 129233277 is 772332921.

It is not a de Polignac number, because 129233277 - 2⁴ = 129233261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129233227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 100483 + ... + 101760.

It is an arithmetic number, because the mean of its divisors is an integer number (15775032).

Almost surely, 2^129233277 is an apocalyptic number.

It is an amenable number.

129233277 is a deficient number, since it is larger than the sum of its proper divisors (60067107).

129233277 is a wasteful number, since it uses less digits than its factorization.

129233277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202320 (or 202317 counting only the distinct ones).

The product of its digits is 31752, while the sum is 36.

The square root of 129233277 is about 11368.0815004116. The cubic root of 129233277 is about 505.5818239344.

The spelling of 129233277 in words is "one hundred twenty-nine million, two hundred thirty-three thousand, two hundred seventy-seven".