216302215 has 8 divisors (see below), whose sum is σ = 261282528. Its totient is φ = 171895200.

The previous prime is 216302161. The next prime is 216302231. The reversal of 216302215 is 512203612.

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

It is not a de Polignac number, because 216302215 - 2¹¹ = 216300167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142492 + ... + 144001.

It is an arithmetic number, because the mean of its divisors is an integer number (32660316).

Almost surely, 2^216302215 is an apocalyptic number.

216302215 is a deficient number, since it is larger than the sum of its proper divisors (44980313).

216302215 is a wasteful number, since it uses less digits than its factorization.

216302215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286649.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 216302215 is about 14707.2164259591. The cubic root of 216302215 is about 600.2796982982.

Adding to 216302215 its reverse (512203612), we get a palindrome (728505827).

The spelling of 216302215 in words is "two hundred sixteen million, three hundred two thousand, two hundred fifteen".