217000133 has 8 divisors (see below), whose sum is σ = 248381760. Its totient is φ = 185713920.

The previous prime is 217000109. The next prime is 217000151. The reversal of 217000133 is 331000712.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 217000133 - 2²⁴ = 200222917 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 (217000163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18908 + ... + 28133.

It is an arithmetic number, because the mean of its divisors is an integer number (31047720).

Almost surely, 2^217000133 is an apocalyptic number.

It is an amenable number.

217000133 is a deficient number, since it is larger than the sum of its proper divisors (31381627).

217000133 is an equidigital number, since it uses as much as digits as its factorization.

217000133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47707.

The product of its (nonzero) digits is 126, while the sum is 17.

The square root of 217000133 is about 14730.9243769697. The cubic root of 217000133 is about 600.9246234612.

Adding to 217000133 its reverse (331000712), we get a palindrome (548000845).

The spelling of 217000133 in words is "two hundred seventeen million, one hundred thirty-three", and thus it is an aban number.