135015211 has 4 divisors (see below), whose sum is σ = 135225832. Its totient is φ = 134804592.

The previous prime is 135015191. The next prime is 135015217. The reversal of 135015211 is 112510531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 112510531 = 7 ⋅16072933.

It is a cyclic number.

It is not a de Polignac number, because 135015211 - 2⁹ = 135014699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135015217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104346 + ... + 105631.

It is an arithmetic number, because the mean of its divisors is an integer number (33806458).

Almost surely, 2^135015211 is an apocalyptic number.

135015211 is a deficient number, since it is larger than the sum of its proper divisors (210621).

135015211 is an equidigital number, since it uses as much as digits as its factorization.

135015211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210620.

The product of its (nonzero) digits is 150, while the sum is 19.

The square root of 135015211 is about 11619.6045974035. The cubic root of 135015211 is about 513.0120502751.

Adding to 135015211 its reverse (112510531), we get a palindrome (247525742).

It can be divided in two parts, 1350 and 15211, that added together give a palindrome (16561).

The spelling of 135015211 in words is "one hundred thirty-five million, fifteen thousand, two hundred eleven".