2216146 has 4 divisors (see below), whose sum is σ = 3324222. Its totient is φ = 1108072.

The previous prime is 2216143. The next prime is 2216153. The reversal of 2216146 is 6416122.

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

It can be written as a sum of positive squares in only one way, i.e., 1185921 + 1030225 = 1089^2 + 1015^2 .

It is a super-2 number, since 2×2216146² = 9822606186632, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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 as a sum of consecutive naturals, namely, 554035 + ... + 554038.

2^2216146 is an apocalyptic number.

2216146 is a deficient number, since it is larger than the sum of its proper divisors (1108076).

2216146 is a wasteful number, since it uses less digits than its factorization.

2216146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1108075.

The product of its digits is 576, while the sum is 22.

The square root of 2216146 is about 1488.6725630574. The cubic root of 2216146 is about 130.3765414411.

The spelling of 2216146 in words is "two million, two hundred sixteen thousand, one hundred forty-six".