129934233 has 64 divisors (see below), whose sum is σ = 229743360. Its totient is φ = 71539200.

The previous prime is 129934229. The next prime is 129934249. The reversal of 129934233 is 332439921.

It is not a de Polignac number, because 129934233 - 2² = 129934229 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (129934253) 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 63 ways as a sum of consecutive naturals, for example, 281623 + ... + 282083.

It is an arithmetic number, because the mean of its divisors is an integer number (3589740).

Almost surely, 2^129934233 is an apocalyptic number.

129934233 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

129934233 is a deficient number, since it is larger than the sum of its proper divisors (99809127).

129934233 is a wasteful number, since it uses less digits than its factorization.

129934233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567 (or 561 counting only the distinct ones).

The product of its digits is 34992, while the sum is 36.

The square root of 129934233 is about 11398.8698123981. The cubic root of 129934233 is about 506.4942612766.

The spelling of 129934233 in words is "one hundred twenty-nine million, nine hundred thirty-four thousand, two hundred thirty-three".