2216147 has 4 divisors (see below), whose sum is σ = 2223456. Its totient is φ = 2208840.

The previous prime is 2216143. The next prime is 2216153. The reversal of 2216147 is 7416122.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2216147 - 2² = 2216143 is a prime.

It is a super-4 number, since 4×2216147⁴ (a number of 26 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a d-powerful number, because it can be written as 2⁵ + 2²¹ + 1 + 6⁴ + 1 + 4² + 7⁶ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2216143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3179 + ... + 3812.

It is an arithmetic number, because the mean of its divisors is an integer number (555864).

2^2216147 is an apocalyptic number.

2216147 is a deficient number, since it is larger than the sum of its proper divisors (7309).

2216147 is an equidigital number, since it uses as much as digits as its factorization.

2216147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7308.

The product of its digits is 672, while the sum is 23.

The square root of 2216147 is about 1488.6728989271. The cubic root of 2216147 is about 130.3765610512.

The spelling of 2216147 in words is "two million, two hundred sixteen thousand, one hundred forty-seven".