135132223 has 4 divisors (see below), whose sum is σ = 135165240. Its totient is φ = 135099208.

The previous prime is 135132211. The next prime is 135132227. The reversal of 135132223 is 322231531.

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-135132223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 135132194 and 135132203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135132227) 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, 9328 + ... + 18901.

It is an arithmetic number, because the mean of its divisors is an integer number (33791310).

Almost surely, 2^135132223 is an apocalyptic number.

135132223 is a deficient number, since it is larger than the sum of its proper divisors (33017).

135132223 is an equidigital number, since it uses as much as digits as its factorization.

135132223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33016.

The product of its digits is 1080, while the sum is 22.

The square root of 135132223 is about 11624.6386180388. The cubic root of 135132223 is about 513.1602094652.

Adding to 135132223 its reverse (322231531), we get a palindrome (457363754).

The spelling of 135132223 in words is "one hundred thirty-five million, one hundred thirty-two thousand, two hundred twenty-three".