216871059 has 12 divisors (see below), whose sum is σ = 296050056. Its totient is φ = 141214752.

The previous prime is 216871051. The next prime is 216871103. The reversal of 216871059 is 950178612.

216871059 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 216871059 - 2³ = 216871051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216871051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14002 + ... + 25095.

It is an arithmetic number, because the mean of its divisors is an integer number (24670838).

Almost surely, 2^216871059 is an apocalyptic number.

216871059 is a deficient number, since it is larger than the sum of its proper divisors (79178997).

216871059 is an equidigital number, since it uses as much as digits as its factorization.

216871059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39186 (or 39143 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 39.

The square root of 216871059 is about 14726.5426696153. The cubic root of 216871059 is about 600.8054543660.

The spelling of 216871059 in words is "two hundred sixteen million, eight hundred seventy-one thousand, fifty-nine".