135222341 has 4 divisors (see below), whose sum is σ = 139584384. Its totient is φ = 130860300.

The previous prime is 135222323. The next prime is 135222377. The reversal of 135222341 is 143222531.

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, and also an emirpimes, since its reverse is a distinct semiprime: 143222531 = 2963 ⋅48337.

It is not a de Polignac number, because 135222341 - 2¹⁸ = 134960197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135222541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2180975 + ... + 2181036.

It is an arithmetic number, because the mean of its divisors is an integer number (34896096).

Almost surely, 2^135222341 is an apocalyptic number.

It is an amenable number.

135222341 is a deficient number, since it is larger than the sum of its proper divisors (4362043).

135222341 is an equidigital number, since it uses as much as digits as its factorization.

135222341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4362042.

The product of its digits is 1440, while the sum is 23.

The square root of 135222341 is about 11628.5141355205. The cubic root of 135222341 is about 513.2742575052.

Adding to 135222341 its reverse (143222531), we get a palindrome (278444872).

The spelling of 135222341 in words is "one hundred thirty-five million, two hundred twenty-two thousand, three hundred forty-one".