129768133 has 8 divisors (see below), whose sum is σ = 142968096. Its totient is φ = 116802000.

The previous prime is 129768103. The next prime is 129768169. The reversal of 129768133 is 331867921.

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

It is a cyclic number.

It is not a de Polignac number, because 129768133 - 2¹⁷ = 129637061 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 (129768103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57291 + ... + 59512.

It is an arithmetic number, because the mean of its divisors is an integer number (17871012).

Almost surely, 2^129768133 is an apocalyptic number.

It is an amenable number.

129768133 is a deficient number, since it is larger than the sum of its proper divisors (13199963).

129768133 is a wasteful number, since it uses less digits than its factorization.

129768133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116915.

The product of its digits is 54432, while the sum is 40.

The square root of 129768133 is about 11391.5816724457. The cubic root of 129768133 is about 506.2783454535.

The spelling of 129768133 in words is "one hundred twenty-nine million, seven hundred sixty-eight thousand, one hundred thirty-three".