134423 has 4 divisors (see below), whose sum is σ = 135240. Its totient is φ = 133608.

The previous prime is 134417. The next prime is 134437. The reversal of 134423 is 324431.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 134423 - 2⁶ = 134359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134443) 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, 65 + ... + 522.

It is an arithmetic number, because the mean of its divisors is an integer number (33810).

2¹³⁴⁴²³ is an apocalyptic number.

134423 is a deficient number, since it is larger than the sum of its proper divisors (817).

134423 is an equidigital number, since it uses as much as digits as its factorization.

134423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816.

The product of its digits is 288, while the sum is 17.

The square root of 134423 is about 366.6374230763. The cubic root of 134423 is about 51.2260883893.

Adding to 134423 its reverse (324431), we get a palindrome (458854).

The spelling of 134423 in words is "one hundred thirty-four thousand, four hundred twenty-three".