134143423 has 4 divisors (see below), whose sum is σ = 134171208. Its totient is φ = 134115640.

The previous prime is 134143421. The next prime is 134143441. The reversal of 134143423 is 324341431.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 134143423 - 2¹ = 134143421 is a prime.

It is a Duffinian number.

It is a zygodrome in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134143421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4561 + ... + 17002.

It is an arithmetic number, because the mean of its divisors is an integer number (33542802).

Almost surely, 2^134143423 is an apocalyptic number.

134143423 is a deficient number, since it is larger than the sum of its proper divisors (27785).

134143423 is an equidigital number, since it uses as much as digits as its factorization.

134143423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27784.

The product of its digits is 3456, while the sum is 25.

The square root of 134143423 is about 11582.0301760961. The cubic root of 134143423 is about 511.9054988653.

Adding to 134143423 its reverse (324341431), we get a palindrome (458484854).

The spelling of 134143423 in words is "one hundred thirty-four million, one hundred forty-three thousand, four hundred twenty-three".