135227232 has 240 divisors, whose sum is σ = 472016160. Its totient is φ = 37158912.

The previous prime is 135227227. The next prime is 135227263. The reversal of 135227232 is 232722531.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

Its product of digits (5040) is a multiple of the sum of its prime factors (315).

It is a junction number, because it is equal to n+sod(n) for n = 135227196 and 135227205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 526048 + ... + 526304.

It is an arithmetic number, because the mean of its divisors is an integer number (1966734).

Almost surely, 2^135227232 is an apocalyptic number.

135227232 is a gapful number since it is divisible by the number (12) 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 135227232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (236008080).

135227232 is an abundant number, since it is smaller than the sum of its proper divisors (336788928).

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

135227232 is a wasteful number, since it uses less digits than its factorization.

135227232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315 (or 298 counting only the distinct ones).

The product of its digits is 5040, while the sum is 27.

The square root of 135227232 is about 11628.7244356378. The cubic root of 135227232 is about 513.2804458172.

Adding to 135227232 its reverse (232722531), we get a palindrome (367949763).

The spelling of 135227232 in words is "one hundred thirty-five million, two hundred twenty-seven thousand, two hundred thirty-two".