216000001 has 8 divisors (see below), whose sum is σ = 247272704. Its totient is φ = 184831200.

The previous prime is 215999989. The next prime is 216000007. The reversal of 216000001 is 100000612.

It is a Cunningham number, because it is equal to 600³+1.

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

It is a cyclic number.

It is not a de Polignac number, because 216000001 - 2¹¹ = 215997953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (216000007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21465 + ... + 29878.

It is an arithmetic number, because the mean of its divisors is an integer number (30909088).

Almost surely, 2^216000001 is an apocalyptic number.

It is an amenable number.

216000001 is a deficient number, since it is larger than the sum of its proper divisors (31272703).

216000001 is an equidigital number, since it uses as much as digits as its factorization.

216000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51951.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 216000001 is about 14696.9384907198. The cubic root of 216000001 is about 600.0000009259. Note that the first 6 decimals are identical.

Adding to 216000001 its reverse (100000612), we get a palindrome (316000613).

The spelling of 216000001 in words is "two hundred sixteen million, one", and thus it is an aban number.