11224531 has 4 divisors (see below), whose sum is σ = 11245032. Its totient is φ = 11204032.

The previous prime is 11224523. The next prime is 11224559. The reversal of 11224531 is 13542211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13542211 = 59 ⋅229529.

It is a cyclic number.

It is not a de Polignac number, because 11224531 - 2³ = 11224523 is a prime.

It is a super-2 number, since 2×11224531² = 251980192339922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11224499 and 11224508.

It is not an unprimeable number, because it can be changed into a prime (11224561) 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, 9406 + ... + 10531.

It is an arithmetic number, because the mean of its divisors is an integer number (2811258).

Almost surely, 2^11224531 is an apocalyptic number.

11224531 is a deficient number, since it is larger than the sum of its proper divisors (20501).

11224531 is an equidigital number, since it uses as much as digits as its factorization.

11224531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20500.

The product of its digits is 240, while the sum is 19.

The square root of 11224531 is about 3350.3031206146. The cubic root of 11224531 is about 223.9010178643.

Adding to 11224531 its reverse (13542211), we get a palindrome (24766742).

It can be divided in two parts, 112 and 24531, that multiplied together give a palindrome (2747472).

The spelling of 11224531 in words is "eleven million, two hundred twenty-four thousand, five hundred thirty-one".