217152853 has 2 divisors, whose sum is σ = 217152854. Its totient is φ = 217152852.

The previous prime is 217152847. The next prime is 217152869. The reversal of 217152853 is 358251712.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 216884529 + 268324 = 14727^2 + 518^2 .

It is a cyclic number.

It is not a de Polignac number, because 217152853 - 2¹³ = 217144661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (217152053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108576426 + 108576427.

It is an arithmetic number, because the mean of its divisors is an integer number (108576427).

Almost surely, 2^217152853 is an apocalyptic number.

It is an amenable number.

217152853 is a deficient number, since it is larger than the sum of its proper divisors (1).

217152853 is an equidigital number, since it uses as much as digits as its factorization.

217152853 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16800, while the sum is 34.

The square root of 217152853 is about 14736.1071182317. The cubic root of 217152853 is about 601.0655629871.

The spelling of 217152853 in words is "two hundred seventeen million, one hundred fifty-two thousand, eight hundred fifty-three".