135343423 has 4 divisors (see below), whose sum is σ = 135706648. Its totient is φ = 134980200.

The previous prime is 135343399. The next prime is 135343433. The reversal of 135343423 is 324343531.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135343423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 135343391 and 135343400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135343433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181053 + ... + 181798.

It is an arithmetic number, because the mean of its divisors is an integer number (33926662).

Almost surely, 2^135343423 is an apocalyptic number.

135343423 is a deficient number, since it is larger than the sum of its proper divisors (363225).

135343423 is an equidigital number, since it uses as much as digits as its factorization.

135343423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363224.

The product of its digits is 12960, while the sum is 28.

The square root of 135343423 is about 11633.7192247363. The cubic root of 135343423 is about 513.4274120126.

Adding to 135343423 its reverse (324343531), we get a palindrome (459686954).

The spelling of 135343423 in words is "one hundred thirty-five million, three hundred forty-three thousand, four hundred twenty-three".