2216237 has 2 divisors, whose sum is σ = 2216238. Its totient is φ = 2216236.

The previous prime is 2216231. The next prime is 2216281. The reversal of 2216237 is 7326122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2149156 + 67081 = 1466^2 + 259^2 .

It is a cyclic number.

It is not a de Polignac number, because 2216237 - 2¹² = 2212141 is a prime.

It is a Chen prime.

It is a d-powerful number, because it can be written as 2³ + 2⁷ + 1 + 6⁴ + 2²¹ + 3 + 7⁶ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2216231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1108118 + 1108119.

It is an arithmetic number, because the mean of its divisors is an integer number (1108119).

2^2216237 is an apocalyptic number.

It is an amenable number.

2216237 is a deficient number, since it is larger than the sum of its proper divisors (1).

2216237 is an equidigital number, since it uses as much as digits as its factorization.

2216237 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1008, while the sum is 23.

The square root of 2216237 is about 1488.7031268859. The cubic root of 2216237 is about 130.3783259359.

The spelling of 2216237 in words is "two million, two hundred sixteen thousand, two hundred thirty-seven".