135222117 has 4 divisors (see below), whose sum is σ = 180296160. Its totient is φ = 90148076.

The previous prime is 135222103. The next prime is 135222181. The reversal of 135222117 is 711222531.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 135222117 - 2⁶ = 135222053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135222317) 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, 22537017 + ... + 22537022.

It is an arithmetic number, because the mean of its divisors is an integer number (45074040).

Almost surely, 2^135222117 is an apocalyptic number.

It is an amenable number.

135222117 is a deficient number, since it is larger than the sum of its proper divisors (45074043).

135222117 is an equidigital number, since it uses as much as digits as its factorization.

135222117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45074042.

The product of its digits is 840, while the sum is 24.

The square root of 135222117 is about 11628.5045040194. The cubic root of 135222117 is about 513.2739740868.

Adding to 135222117 its reverse (711222531), we get a palindrome (846444648).

The spelling of 135222117 in words is "one hundred thirty-five million, two hundred twenty-two thousand, one hundred seventeen".