216000901 has 4 divisors (see below), whose sum is σ = 222968704. Its totient is φ = 209033100.

The previous prime is 216000899. The next prime is 216000959. The reversal of 216000901 is 109000612.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 216000901 - 2¹ = 216000899 is a prime.

It is a super-3 number, since 3×216000901³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216000101) 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 in 3 ways as a sum of consecutive naturals, for example, 3483855 + ... + 3483916.

It is an arithmetic number, because the mean of its divisors is an integer number (55742176).

Almost surely, 2^216000901 is an apocalyptic number.

It is an amenable number.

216000901 is a deficient number, since it is larger than the sum of its proper divisors (6967803).

216000901 is an equidigital number, since it uses as much as digits as its factorization.

216000901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6967802.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 216000901 is about 14696.9691093096. The cubic root of 216000901 is about 600.0008342581. Note that the first 3 decimals are identical.

The spelling of 216000901 in words is "two hundred sixteen million, nine hundred one", and thus it is an aban number.