135240125227 has 2 divisors, whose sum is σ = 135240125228. Its totient is φ = 135240125226.

The previous prime is 135240125221. The next prime is 135240125261. The reversal of 135240125227 is 722521042531.

It is an a-pointer prime, because the next prime (135240125261) can be obtained adding 135240125227 to its sum of digits (34).

It is a weak prime.

It is an emirp because it is prime and its reverse (722521042531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 135240125227 - 2³ = 135240125219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 135240125192 and 135240125201.

It is not a weakly prime, because it can be changed into another prime (135240125221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67620062613 + 67620062614.

It is an arithmetic number, because the mean of its divisors is an integer number (67620062614).

Almost surely, 2^135240125227 is an apocalyptic number.

135240125227 is a deficient number, since it is larger than the sum of its proper divisors (1).

135240125227 is an equidigital number, since it uses as much as digits as its factorization.

135240125227 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 33600, while the sum is 34.

Adding to 135240125227 its reverse (722521042531), we get a palindrome (857761167758).

The spelling of 135240125227 in words is "one hundred thirty-five billion, two hundred forty million, one hundred twenty-five thousand, two hundred twenty-seven".