134904 has 64 divisors (see below), whose sum is σ = 426240. Its totient is φ = 34560.

The previous prime is 134887. The next prime is 134909. The reversal of 134904 is 409431.

134904 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134909) by changing a digit.

134904 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, 1812 + ... + 1884.

It is an arithmetic number, because the mean of its divisors is an integer number (6660).

2¹³⁴⁹⁰⁴ is an apocalyptic number.

134904 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 134904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (213120).

134904 is an abundant number, since it is smaller than the sum of its proper divisors (291336).

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

134904 is a wasteful number, since it uses less digits than its factorization.

134904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100 (or 96 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 134904 is about 367.2927987315. The cubic root of 134904 is about 51.2871156879.

The spelling of 134904 in words is "one hundred thirty-four thousand, nine hundred four".