136533213 has 24 divisors (see below), whose sum is σ = 204684480. Its totient is φ = 87635520.

The previous prime is 136533211. The next prime is 136533227. The reversal of 136533213 is 312335631.

It is a happy number.

136533213 is a `hidden beast` number, since 1 + 3 + 653 + 3 + 2 + 1 + 3 = 666.

It is not a de Polignac number, because 136533213 - 2¹ = 136533211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136533211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24993 + ... + 29961.

It is an arithmetic number, because the mean of its divisors is an integer number (8528520).

Almost surely, 2^136533213 is an apocalyptic number.

It is an amenable number.

136533213 is a deficient number, since it is larger than the sum of its proper divisors (68151267).

136533213 is a wasteful number, since it uses less digits than its factorization.

136533213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5089 (or 5086 counting only the distinct ones).

The product of its digits is 4860, while the sum is 27.

The square root of 136533213 is about 11684.7427442798. The cubic root of 136533213 is about 514.9275205129.

Adding to 136533213 its reverse (312335631), we get a palindrome (448868844).

The spelling of 136533213 in words is "one hundred thirty-six million, five hundred thirty-three thousand, two hundred thirteen".