135123226 has 8 divisors (see below), whose sum is σ = 231639840. Its totient is φ = 57909948.

The previous prime is 135123221. The next prime is 135123227. The reversal of 135123226 is 622321531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 135123226.

It is not an unprimeable number, because it can be changed into a prime (135123221) 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, 4825816 + ... + 4825843.

It is an arithmetic number, because the mean of its divisors is an integer number (28954980).

Almost surely, 2^135123226 is an apocalyptic number.

135123226 is a deficient number, since it is larger than the sum of its proper divisors (96516614).

135123226 is an equidigital number, since it uses as much as digits as its factorization.

135123226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9651668.

The product of its digits is 2160, while the sum is 25.

The square root of 135123226 is about 11624.2516318256. The cubic root of 135123226 is about 513.1488206078.

Adding to 135123226 its reverse (622321531), we get a palindrome (757444757).

The spelling of 135123226 in words is "one hundred thirty-five million, one hundred twenty-three thousand, two hundred twenty-six".