134305423 has 32 divisors (see below), whose sum is σ = 171417600. Its totient is φ = 104711040.

The previous prime is 134305411. The next prime is 134305429. The reversal of 134305423 is 324503431.

It is a de Polignac number, because none of the positive numbers 2^k-134305423 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134305429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 180390 + ... + 181132.

It is an arithmetic number, because the mean of its divisors is an integer number (5356800).

Almost surely, 2^134305423 is an apocalyptic number.

134305423 is a deficient number, since it is larger than the sum of its proper divisors (37112177).

134305423 is an equidigital number, since it uses as much as digits as its factorization.

134305423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812 (or 798 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 134305423 is about 11589.0216584490. The cubic root of 134305423 is about 512.1114856816. Note that the first 3 decimals are identical.

Adding to 134305423 its reverse (324503431), we get a palindrome (458808854).

The spelling of 134305423 in words is "one hundred thirty-four million, three hundred five thousand, four hundred twenty-three".