129146 has 8 divisors (see below), whose sum is σ = 200064. Its totient is φ = 62460.

The previous prime is 129127. The next prime is 129169. The reversal of 129146 is 641921.

It is a happy number.

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

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 3 ways as a sum of consecutive naturals, for example, 980 + ... + 1103.

It is an arithmetic number, because the mean of its divisors is an integer number (25008).

2¹²⁹¹⁴⁶ is an apocalyptic number.

129146 is a deficient number, since it is larger than the sum of its proper divisors (70918).

129146 is a wasteful number, since it uses less digits than its factorization.

129146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2116.

The product of its digits is 432, while the sum is 23.

The square root of 129146 is about 359.3688912524. The cubic root of 129146 is about 50.5467984313.

The spelling of 129146 in words is "one hundred twenty-nine thousand, one hundred forty-six".