129846 has 32 divisors (see below), whose sum is σ = 293760. Its totient is φ = 38016.

The previous prime is 129841. The next prime is 129853. The reversal of 129846 is 648921.

129846 = T₁₁₅ + T₁₁₆ + ... + T₁₃₁.

It is an Ulam number.

Its product of digits (3456) is a multiple of the sum of its prime divisors (108).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129841) by changing a digit.

129846 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1905 + ... + 1971.

It is an arithmetic number, because the mean of its divisors is an integer number (9180).

2¹²⁹⁸⁴⁶ is an apocalyptic number.

129846 is an abundant number, since it is smaller than the sum of its proper divisors (163914).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

129846 is a wasteful number, since it uses less digits than its factorization.

129846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108.

The product of its digits is 3456, while the sum is 30.

The square root of 129846 is about 360.3415046869. The cubic root of 129846 is about 50.6379588834.

The spelling of 129846 in words is "one hundred twenty-nine thousand, eight hundred forty-six".