224224531 has 4 divisors (see below), whose sum is σ = 229693464. Its totient is φ = 218755600.

The previous prime is 224224523. The next prime is 224224547. The reversal of 224224531 is 135422422.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 135422422 = 2 ⋅67711211.

It is a cyclic number.

It is not a de Polignac number, because 224224531 - 2³ = 224224523 is a prime.

It is a super-2 number, since 2×224224531² = 100553280604339922, 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 = 224224496 and 224224505.

It is not an unprimeable number, because it can be changed into a prime (224224501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2734405 + ... + 2734486.

It is an arithmetic number, because the mean of its divisors is an integer number (57423366).

Almost surely, 2^224224531 is an apocalyptic number.

224224531 is a deficient number, since it is larger than the sum of its proper divisors (5468933).

224224531 is an equidigital number, since it uses as much as digits as its factorization.

224224531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5468932.

The product of its digits is 3840, while the sum is 25.

The square root of 224224531 is about 14974.1287225668. The cubic root of 224224531 is about 607.5206457671.

Adding to 224224531 its reverse (135422422), we get a palindrome (359646953).

The spelling of 224224531 in words is "two hundred twenty-four million, two hundred twenty-four thousand, five hundred thirty-one".