2213515 has 4 divisors (see below), whose sum is σ = 2656224. Its totient is φ = 1770808.

The previous prime is 2213489. The next prime is 2213531. The reversal of 2213515 is 5153122.

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 2213515 - 2¹³ = 2205323 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2213492 and 2213501.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221347 + ... + 221356.

It is an arithmetic number, because the mean of its divisors is an integer number (664056).

2^2213515 is an apocalyptic number.

2213515 is a deficient number, since it is larger than the sum of its proper divisors (442709).

2213515 is an equidigital number, since it uses as much as digits as its factorization.

2213515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442708.

The product of its digits is 300, while the sum is 19.

The square root of 2213515 is about 1487.7886274602. The cubic root of 2213515 is about 130.3249268341.

Adding to 2213515 its reverse (5153122), we get a palindrome (7366637).

The spelling of 2213515 in words is "two million, two hundred thirteen thousand, five hundred fifteen".