129575 has 12 divisors (see below), whose sum is σ = 165168. Its totient is φ = 100800.

The previous prime is 129553. The next prime is 129581. The reversal of 129575 is 575921.

It is not a de Polignac number, because 129575 - 2¹⁰ = 128551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1739 + ... + 1811.

It is an arithmetic number, because the mean of its divisors is an integer number (13764).

2¹²⁹⁵⁷⁵ is an apocalyptic number.

129575 is a deficient number, since it is larger than the sum of its proper divisors (35593).

129575 is an equidigital number, since it uses as much as digits as its factorization.

129575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154 (or 149 counting only the distinct ones).

The product of its digits is 3150, while the sum is 29.

The square root of 129575 is about 359.9652761031. The cubic root of 129575 is about 50.6027057248.

The spelling of 129575 in words is "one hundred twenty-nine thousand, five hundred seventy-five".