135204223 has 16 divisors (see below), whose sum is σ = 171429120. Its totient is φ = 103564800.

The previous prime is 135204221. The next prime is 135204229. The reversal of 135204223 is 322402531.

It is a cyclic number.

It is not a de Polignac number, because 135204223 - 2¹ = 135204221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 135204194 and 135204203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135204221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10338 + ... + 19423.

It is an arithmetic number, because the mean of its divisors is an integer number (10714320).

Almost surely, 2^135204223 is an apocalyptic number.

135204223 is a deficient number, since it is larger than the sum of its proper divisors (36224897).

135204223 is a wasteful number, since it uses less digits than its factorization.

135204223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29838.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 135204223 is about 11627.7350761015. The cubic root of 135204223 is about 513.2513325006.

Adding to 135204223 its reverse (322402531), we get a palindrome (457606754).

The spelling of 135204223 in words is "one hundred thirty-five million, two hundred four thousand, two hundred twenty-three".