135216411 has 12 divisors (see below), whose sum is σ = 198168936. Its totient is φ = 81949120.

The previous prime is 135216383. The next prime is 135216413. The reversal of 135216411 is 114612531.

It is a happy number.

135216411 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 135216411 - 2¹¹ = 135214363 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135216413) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 185886 + ... + 186611.

It is an arithmetic number, because the mean of its divisors is an integer number (16514078).

Almost surely, 2^135216411 is an apocalyptic number.

135216411 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

135216411 is a deficient number, since it is larger than the sum of its proper divisors (62952525).

135216411 is a wasteful number, since it uses less digits than its factorization.

135216411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372522 (or 372511 counting only the distinct ones).

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

The square root of 135216411 is about 11628.2591560388. The cubic root of 135216411 is about 513.2667544037.

Adding to 135216411 its reverse (114612531), we get a palindrome (249828942).

The spelling of 135216411 in words is "one hundred thirty-five million, two hundred sixteen thousand, four hundred eleven".