2237215 has 4 divisors (see below), whose sum is σ = 2684664. Its totient is φ = 1789768.

The previous prime is 2237189. The next prime is 2237219. The reversal of 2237215 is 5127322.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5127322 = 2 ⋅2563661.

It is a cyclic number.

It is not a de Polignac number, because 2237215 - 2¹⁹ = 1712927 is a prime.

It is a Duffinian number.

2237215 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2237219) 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, 223717 + ... + 223726.

It is an arithmetic number, because the mean of its divisors is an integer number (671166).

2^2237215 is an apocalyptic number.

2237215 is a deficient number, since it is larger than the sum of its proper divisors (447449).

2237215 is an equidigital number, since it uses as much as digits as its factorization.

2237215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447448.

The product of its digits is 840, while the sum is 22.

The square root of 2237215 is about 1495.7322621378. The cubic root of 2237215 is about 130.7884042067.

The spelling of 2237215 in words is "two million, two hundred thirty-seven thousand, two hundred fifteen".