135217227 has 8 divisors (see below), whose sum is σ = 186506640. Its totient is φ = 87036320.

The previous prime is 135217223. The next prime is 135217237. The reversal of 135217227 is 722712531.

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

It is a cyclic number.

It is not a de Polignac number, because 135217227 - 2² = 135217223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 135217194 and 135217203.

It is not an unprimeable number, because it can be changed into a prime (135217223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 777024 + ... + 777197.

It is an arithmetic number, because the mean of its divisors is an integer number (23313330).

Almost surely, 2^135217227 is an apocalyptic number.

135217227 is a deficient number, since it is larger than the sum of its proper divisors (51289413).

135217227 is a wasteful number, since it uses less digits than its factorization.

135217227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1554253.

The product of its digits is 5880, while the sum is 30.

The square root of 135217227 is about 11628.2942429232. The cubic root of 135217227 is about 513.2677868840.

Adding to 135217227 its reverse (722712531), we get a palindrome (857929758).

The spelling of 135217227 in words is "one hundred thirty-five million, two hundred seventeen thousand, two hundred twenty-seven".