12228135 has 8 divisors (see below), whose sum is σ = 19565040. Its totient is φ = 6521664.

The previous prime is 12228119. The next prime is 12228137. The reversal of 12228135 is 53182221.

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

It is not a de Polignac number, because 12228135 - 2⁴ = 12228119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12228137) 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 7 ways as a sum of consecutive naturals, for example, 407590 + ... + 407619.

It is an arithmetic number, because the mean of its divisors is an integer number (2445630).

Almost surely, 2^12228135 is an apocalyptic number.

12228135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12228135 is a deficient number, since it is larger than the sum of its proper divisors (7336905).

12228135 is an equidigital number, since it uses as much as digits as its factorization.

12228135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815217.

The product of its digits is 960, while the sum is 24.

The square root of 12228135 is about 3496.8750335121. The cubic root of 12228135 is about 230.3845802819.

The spelling of 12228135 in words is "twelve million, two hundred twenty-eight thousand, one hundred thirty-five".