135012211 has 4 divisors (see below), whose sum is σ = 135184552. Its totient is φ = 134839872.

The previous prime is 135012203. The next prime is 135012239. The reversal of 135012211 is 112210531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 112210531 = 271 ⋅414061.

It is a cyclic number.

It is not a de Polignac number, because 135012211 - 2³ = 135012203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135012611) 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 3 ways as a sum of consecutive naturals, for example, 84990 + ... + 86563.

It is an arithmetic number, because the mean of its divisors is an integer number (33796138).

Almost surely, 2^135012211 is an apocalyptic number.

135012211 is a deficient number, since it is larger than the sum of its proper divisors (172341).

135012211 is an equidigital number, since it uses as much as digits as its factorization.

135012211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172340.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 135012211 is about 11619.4755045140. The cubic root of 135012211 is about 513.0082505858.

Adding to 135012211 its reverse (112210531), we get a palindrome (247222742).

The spelling of 135012211 in words is "one hundred thirty-five million, twelve thousand, two hundred eleven".