22113513 has 16 divisors (see below), whose sum is σ = 32862400. Its totient is φ = 14696640.

The previous prime is 22113503. The next prime is 22113521. The reversal of 22113513 is 31531122.

It is not a de Polignac number, because 22113513 - 2⁶ = 22113449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22113503) 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 15 ways as a sum of consecutive naturals, for example, 9153 + ... + 11313.

It is an arithmetic number, because the mean of its divisors is an integer number (2053900).

Almost surely, 2^22113513 is an apocalyptic number.

It is an amenable number.

22113513 is a deficient number, since it is larger than the sum of its proper divisors (10748887).

22113513 is a wasteful number, since it uses less digits than its factorization.

22113513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2549 (or 2543 counting only the distinct ones).

The product of its digits is 180, while the sum is 18.

The square root of 22113513 is about 4702.5007177033. The cubic root of 22113513 is about 280.6850276265.

Adding to 22113513 its reverse (31531122), we get a palindrome (53644635).

The spelling of 22113513 in words is "twenty-two million, one hundred thirteen thousand, five hundred thirteen".