135000211 has 4 divisors (see below), whose sum is σ = 135985752. Its totient is φ = 134014672.

The previous prime is 135000199. The next prime is 135000233. The reversal of 135000211 is 112000531.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135000211 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 135000191 and 135000200.

It is not an unprimeable number, because it can be changed into a prime (135000251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 492565 + ... + 492838.

It is an arithmetic number, because the mean of its divisors is an integer number (33996438).

Almost surely, 2^135000211 is an apocalyptic number.

135000211 is a deficient number, since it is larger than the sum of its proper divisors (985541).

135000211 is an equidigital number, since it uses as much as digits as its factorization.

135000211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 985540.

The product of its (nonzero) digits is 30, while the sum is 13.

The square root of 135000211 is about 11618.9591186130. The cubic root of 135000211 is about 512.9930512658.

Adding to 135000211 its reverse (112000531), we get a palindrome (247000742).

The spelling of 135000211 in words is "one hundred thirty-five million, two hundred eleven", and thus it is an aban number.