129333357 has 6 divisors (see below), whose sum is σ = 186814862. Its totient is φ = 86222232.

The previous prime is 129333329. The next prime is 129333367. The reversal of 129333357 is 753333921.

It can be written as a sum of positive squares in only one way, i.e., 89756676 + 39576681 = 9474^2 + 6291^2 .

It is not a de Polignac number, because 129333357 - 2⁸ = 129333101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129333307) 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 5 ways as a sum of consecutive naturals, for example, 7185178 + ... + 7185195.

Almost surely, 2^129333357 is an apocalyptic number.

It is an amenable number.

129333357 is a deficient number, since it is larger than the sum of its proper divisors (57481505).

129333357 is a wasteful number, since it uses less digits than its factorization.

129333357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14370379 (or 14370376 counting only the distinct ones).

The product of its digits is 51030, while the sum is 36.

The square root of 129333357 is about 11372.4824466780. The cubic root of 129333357 is about 505.7123000633.

It can be divided in two parts, 12933 and 3357, that added together give a triangular number (16290 = T₁₈₀).

The spelling of 129333357 in words is "one hundred twenty-nine million, three hundred thirty-three thousand, three hundred fifty-seven".