135158211 has 24 divisors (see below), whose sum is σ = 207206064. Its totient is φ = 84602880.

The previous prime is 135158209. The next prime is 135158239. The reversal of 135158211 is 112851531.

It is not a de Polignac number, because 135158211 - 2¹ = 135158209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135158291) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 87516 + ... + 89046.

It is an arithmetic number, because the mean of its divisors is an integer number (8633586).

Almost surely, 2^135158211 is an apocalyptic number.

135158211 is a deficient number, since it is larger than the sum of its proper divisors (72047853).

135158211 is a wasteful number, since it uses less digits than its factorization.

135158211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2131 (or 2128 counting only the distinct ones).

The product of its digits is 1200, while the sum is 27.

The square root of 135158211 is about 11625.7563624910. The cubic root of 135158211 is about 513.1931035508.

The spelling of 135158211 in words is "one hundred thirty-five million, one hundred fifty-eight thousand, two hundred eleven".