133534211 has 4 divisors (see below), whose sum is σ = 133588992. Its totient is φ = 133479432.

The previous prime is 133534157. The next prime is 133534213. The reversal of 133534211 is 112435331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 133534211 - 2¹⁸ = 133272067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133534213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23555 + ... + 28668.

It is an arithmetic number, because the mean of its divisors is an integer number (33397248).

Almost surely, 2^133534211 is an apocalyptic number.

133534211 is a deficient number, since it is larger than the sum of its proper divisors (54781).

133534211 is an equidigital number, since it uses as much as digits as its factorization.

133534211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54780.

The product of its digits is 1080, while the sum is 23.

The square root of 133534211 is about 11555.7003682165. The cubic root of 133534211 is about 511.1293836130.

Adding to 133534211 its reverse (112435331), we get a palindrome (245969542).

The spelling of 133534211 in words is "one hundred thirty-three million, five hundred thirty-four thousand, two hundred eleven".