216109283 has 8 divisors (see below), whose sum is σ = 232999200. Its totient is φ = 199257408.

The previous prime is 216109261. The next prime is 216109301. The reversal of 216109283 is 382901612.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-216109283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (216109213) 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 7 ways as a sum of consecutive naturals, for example, 2903 + ... + 20991.

It is an arithmetic number, because the mean of its divisors is an integer number (29124900).

Almost surely, 2^216109283 is an apocalyptic number.

216109283 is a deficient number, since it is larger than the sum of its proper divisors (16889917).

216109283 is a wasteful number, since it uses less digits than its factorization.

216109283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19021.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 216109283 is about 14700.6558697223. The cubic root of 216109283 is about 600.1011709028.

The spelling of 216109283 in words is "two hundred sixteen million, one hundred nine thousand, two hundred eighty-three".