215300133 has 16 divisors (see below), whose sum is σ = 322255360. Its totient is φ = 142051968.

The previous prime is 215300131. The next prime is 215300149. The reversal of 215300133 is 331003512.

215300133 is a `hidden beast` number, since 2 + 1 + 530 + 0 + 133 = 666.

It is not a de Polignac number, because 215300133 - 2¹ = 215300131 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 (215300131) 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 15 ways as a sum of consecutive naturals, for example, 38485 + ... + 43722.

It is an arithmetic number, because the mean of its divisors is an integer number (20140960).

Almost surely, 2^215300133 is an apocalyptic number.

It is an amenable number.

215300133 is a deficient number, since it is larger than the sum of its proper divisors (106955227).

215300133 is an equidigital number, since it uses as much as digits as its factorization.

215300133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82313 (or 82307 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 18.

The square root of 215300133 is about 14673.1091797206. The cubic root of 215300133 is about 599.3512738434.

Adding to 215300133 its reverse (331003512), we get a palindrome (546303645).

The spelling of 215300133 in words is "two hundred fifteen million, three hundred thousand, one hundred thirty-three".