135132228 has 216 divisors, whose sum is σ = 451563840. Its totient is φ = 33062400.

The previous prime is 135132227. The next prime is 135132259. The reversal of 135132228 is 822231531.

It is not an unprimeable number, because it can be changed into a prime (135132227) 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 71 ways as a sum of consecutive naturals, for example, 3295888 + ... + 3295928.

Almost surely, 2^135132228 is an apocalyptic number.

135132228 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 135132228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (225781920).

135132228 is an abundant number, since it is smaller than the sum of its proper divisors (316431612).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135132228 is a wasteful number, since it uses less digits than its factorization.

135132228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139 (or 93 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 135132228 is about 11624.6388330993. The cubic root of 135132228 is about 513.1602157943.

Adding to 135132228 its reverse (822231531), we get a palindrome (957363759).

The spelling of 135132228 in words is "one hundred thirty-five million, one hundred thirty-two thousand, two hundred twenty-eight".