135045223 has 4 divisors (see below), whose sum is σ = 136284280. Its totient is φ = 133806168.

The previous prime is 135045091. The next prime is 135045271. The reversal of 135045223 is 322540531.

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 135045223 - 2²⁵ = 101490791 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 (135045623) 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, 619365 + ... + 619582.

It is an arithmetic number, because the mean of its divisors is an integer number (34071070).

Almost surely, 2^135045223 is an apocalyptic number.

135045223 is a deficient number, since it is larger than the sum of its proper divisors (1239057).

135045223 is a wasteful number, since it uses less digits than its factorization.

135045223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1239056.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 135045223 is about 11620.8959637370. The cubic root of 135045223 is about 513.0500592689.

Adding to 135045223 its reverse (322540531), we get a palindrome (457585754).

The spelling of 135045223 in words is "one hundred thirty-five million, forty-five thousand, two hundred twenty-three".