134889 has 4 divisors (see below), whose sum is σ = 179856. Its totient is φ = 89924.

The previous prime is 134887. The next prime is 134909. The reversal of 134889 is 988431.

134889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 134889 - 2¹ = 134887 is a prime.

It is a D-number.

It is a Curzon number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (134887) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22479 + ... + 22484.

It is an arithmetic number, because the mean of its divisors is an integer number (44964).

2¹³⁴⁸⁸⁹ is an apocalyptic number.

It is an amenable number.

134889 is a deficient number, since it is larger than the sum of its proper divisors (44967).

134889 is an equidigital number, since it uses as much as digits as its factorization.

134889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44966.

The product of its digits is 6912, while the sum is 33.

The square root of 134889 is about 367.2723784877. The cubic root of 134889 is about 51.2852147429.

The spelling of 134889 in words is "one hundred thirty-four thousand, eight hundred eighty-nine".