134389 has 4 divisors (see below), whose sum is σ = 140256. Its totient is φ = 128524.

The previous prime is 134371. The next prime is 134399. The reversal of 134389 is 983431.

134389 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 not a de Polignac number, because 134389 - 2⁹ = 133877 is a prime.

It is a Duffinian number.

134389 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134339) 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, 2899 + ... + 2944.

It is an arithmetic number, because the mean of its divisors is an integer number (35064).

2¹³⁴³⁸⁹ is an apocalyptic number.

It is an amenable number.

134389 is a deficient number, since it is larger than the sum of its proper divisors (5867).

134389 is an equidigital number, since it uses as much as digits as its factorization.

134389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5866.

The product of its digits is 2592, while the sum is 28.

The square root of 134389 is about 366.5910528095. The cubic root of 134389 is about 51.2217691040.

The spelling of 134389 in words is "one hundred thirty-four thousand, three hundred eighty-nine".