133033211 has 4 divisors (see below), whose sum is σ = 140858712. Its totient is φ = 125207712.

The previous prime is 133033189. The next prime is 133033213. The reversal of 133033211 is 112330331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 112330331 = 257 ⋅437083.

It is a cyclic number.

It is not a de Polignac number, because 133033211 - 2¹⁰ = 133032187 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 7825483 = 133033211 / (1 + 3 + 3 + 0 + 3 + 3 + 2 + 1 + 1).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 133033211.

It is not an unprimeable number, because it can be changed into a prime (133033213) 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, 3912725 + ... + 3912758.

It is an arithmetic number, because the mean of its divisors is an integer number (35214678).

Almost surely, 2^133033211 is an apocalyptic number.

133033211 is a deficient number, since it is larger than the sum of its proper divisors (7825501).

133033211 is an equidigital number, since it uses as much as digits as its factorization.

133033211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7825500.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 133033211 is about 11534.0023842550. The cubic root of 133033211 is about 510.4893560102.

Adding to 133033211 its reverse (112330331), we get a palindrome (245363542).

The spelling of 133033211 in words is "one hundred thirty-three million, thirty-three thousand, two hundred eleven".