218035133 has 4 divisors (see below), whose sum is σ = 218196000. Its totient is φ = 217874268.

The previous prime is 218035123. The next prime is 218035141. The reversal of 218035133 is 331530812.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 218035133 - 2¹⁰ = 218034109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218035123) 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, 78383 + ... + 81116.

It is an arithmetic number, because the mean of its divisors is an integer number (54549000).

Almost surely, 2^218035133 is an apocalyptic number.

It is an amenable number.

218035133 is a deficient number, since it is larger than the sum of its proper divisors (160867).

218035133 is a wasteful number, since it uses less digits than its factorization.

218035133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160866.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 218035133 is about 14766.0127658078. The cubic root of 218035133 is about 601.8784950304.

Adding to 218035133 its reverse (331530812), we get a palindrome (549565945).

The spelling of 218035133 in words is "two hundred eighteen million, thirty-five thousand, one hundred thirty-three".