129033297 has 24 divisors (see below), whose sum is σ = 193633440. Its totient is φ = 84918600.

The previous prime is 129033269. The next prime is 129033299. The reversal of 129033297 is 792330921.

It is not a de Polignac number, because 129033297 - 2⁷ = 129033169 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 (129033299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 675472 + ... + 675662.

It is an arithmetic number, because the mean of its divisors is an integer number (8068060).

Almost surely, 2^129033297 is an apocalyptic number.

It is an amenable number.

129033297 is a deficient number, since it is larger than the sum of its proper divisors (64600143).

129033297 is an equidigital number, since it uses as much as digits as its factorization.

129033297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522 (or 325 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 36.

The square root of 129033297 is about 11359.2824157162. The cubic root of 129033297 is about 505.3209044248.

It can be divided in two parts, 12 and 9033297, that added together give a palindrome (9033309).

The spelling of 129033297 in words is "one hundred twenty-nine million, thirty-three thousand, two hundred ninety-seven".