129104 has 10 divisors (see below), whose sum is σ = 250170. Its totient is φ = 64544.

The previous prime is 129097. The next prime is 129113. The reversal of 129104 is 401921.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 67600 + 61504 = 260^2 + 248^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4019 + ... + 4050.

It is an arithmetic number, because the mean of its divisors is an integer number (25017).

2¹²⁹¹⁰⁴ is an apocalyptic number.

It is an amenable number.

129104 is a deficient number, since it is larger than the sum of its proper divisors (121066).

129104 is an equidigital number, since it uses as much as digits as its factorization.

129104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8077 (or 8071 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 129104 is about 359.3104507247. The cubic root of 129104 is about 50.5413183398.

The spelling of 129104 in words is "one hundred twenty-nine thousand, one hundred four".