2213503 has 4 divisors (see below), whose sum is σ = 2251080. Its totient is φ = 2175928.

The previous prime is 2213489. The next prime is 2213531. The reversal of 2213503 is 3053122.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3053122 = 2 ⋅1526561.

It is a cyclic number.

It is not a de Polignac number, because 2213503 - 2²¹ = 116351 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 (2213593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18700 + ... + 18817.

It is an arithmetic number, because the mean of its divisors is an integer number (562770).

2^2213503 is an apocalyptic number.

2213503 is a deficient number, since it is larger than the sum of its proper divisors (37577).

2213503 is an equidigital number, since it uses as much as digits as its factorization.

2213503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37576.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 2213503 is about 1487.7845946238. The cubic root of 2213503 is about 130.3246913261.

Adding to 2213503 its reverse (3053122), we get a palindrome (5266625).

The spelling of 2213503 in words is "two million, two hundred thirteen thousand, five hundred three".