135146211 has 8 divisors (see below), whose sum is σ = 180266064. Its totient is φ = 90061920.

The previous prime is 135146203. The next prime is 135146227. The reversal of 135146211 is 112641531.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 135146211 - 2³ = 135146203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135146261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1825 + ... + 16541.

It is an arithmetic number, because the mean of its divisors is an integer number (22533258).

Almost surely, 2^135146211 is an apocalyptic number.

135146211 is a deficient number, since it is larger than the sum of its proper divisors (45119853).

135146211 is a wasteful number, since it uses less digits than its factorization.

135146211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17781.

The product of its digits is 720, while the sum is 24.

The square root of 135146211 is about 11625.2402555818. The cubic root of 135146211 is about 513.1779151789.

Adding to 135146211 its reverse (112641531), we get a palindrome (247787742).

The spelling of 135146211 in words is "one hundred thirty-five million, one hundred forty-six thousand, two hundred eleven".