2213523 has 12 divisors (see below), whose sum is σ = 3443440. Its totient is φ = 1362096.

The previous prime is 2213489. The next prime is 2213531. The reversal of 2213523 is 3253122.

It is not a de Polignac number, because 2213523 - 2¹⁶ = 2147987 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2213496 and 2213505.

It is not an unprimeable number, because it can be changed into a prime (2213593) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9343 + ... + 9576.

2^2213523 is an apocalyptic number.

2213523 is a deficient number, since it is larger than the sum of its proper divisors (1229917).

2213523 is a wasteful number, since it uses less digits than its factorization.

2213523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18938 (or 18935 counting only the distinct ones).

The product of its digits is 360, while the sum is 18.

The square root of 2213523 is about 1487.7913160118. The cubic root of 2213523 is about 130.3250838390.

Adding to 2213523 its reverse (3253122), we get a palindrome (5466645).

The spelling of 2213523 in words is "two million, two hundred thirteen thousand, five hundred twenty-three".