129106 has 4 divisors (see below), whose sum is σ = 193662. Its totient is φ = 64552.

The previous prime is 129097. The next prime is 129113. The reversal of 129106 is 601921.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 128881 + 225 = 359^2 + 15^2 .

129106 is a repfigit number.

It is a plaindrome in base 11.

It is a zygodrome in base 11.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32275 + ... + 32278.

2¹²⁹¹⁰⁶ is an apocalyptic number.

129106 is a deficient number, since it is larger than the sum of its proper divisors (64556).

129106 is an equidigital number, since it uses as much as digits as its factorization.

129106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64555.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 129106 is about 359.3132338225. The cubic root of 129106 is about 50.5415793234.

The spelling of 129106 in words is "one hundred twenty-nine thousand, one hundred six".