2219237 has 4 divisors (see below), whose sum is σ = 2222220. Its totient is φ = 2216256.

The previous prime is 2219221. The next prime is 2219251. The reversal of 2219237 is 7329122.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 7329122 = 2 ⋅3664561.

It can be written as a sum of positive squares in 2 ways, for example, as 185761 + 2033476 = 431^2 + 1426^2 .

It is a cyclic number.

It is not a de Polignac number, because 2219237 - 2⁴ = 2219221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2219137) 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, 653 + ... + 2205.

It is an arithmetic number, because the mean of its divisors is an integer number (555555).

2^2219237 is an apocalyptic number.

It is an amenable number.

2219237 is a deficient number, since it is larger than the sum of its proper divisors (2983).

2219237 is a wasteful number, since it uses less digits than its factorization.

2219237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2982.

The product of its digits is 1512, while the sum is 26.

The square root of 2219237 is about 1489.7103745359. The cubic root of 2219237 is about 130.4371281044.

The spelling of 2219237 in words is "two million, two hundred nineteen thousand, two hundred thirty-seven".