129707135 has 16 divisors (see below), whose sum is σ = 159734784. Its totient is φ = 101056032.

The previous prime is 129707113. The next prime is 129707141. The reversal of 129707135 is 531707921.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 129707135 - 2¹⁰ = 129706111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 129707095 and 129707104.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 98894 + ... + 100196.

It is an arithmetic number, because the mean of its divisors is an integer number (9983424).

Almost surely, 2^129707135 is an apocalyptic number.

129707135 is a deficient number, since it is larger than the sum of its proper divisors (30027649).

129707135 is a wasteful number, since it uses less digits than its factorization.

129707135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1814.

The product of its (nonzero) digits is 13230, while the sum is 35.

The square root of 129707135 is about 11388.9040298002. The cubic root of 129707135 is about 506.1990070063.

The spelling of 129707135 in words is "one hundred twenty-nine million, seven hundred seven thousand, one hundred thirty-five".