224520231 has 16 divisors (see below), whose sum is σ = 322732256. Its totient is φ = 138018816.

The previous prime is 224520217. The next prime is 224520251. The reversal of 224520231 is 132025422.

224520231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 224520231 - 2⁷ = 224520103 is a prime.

It is a super-2 number, since 2×224520231² = 100818668256586722, 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 = 224520198 and 224520207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224520251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42471 + ... + 47463.

It is an arithmetic number, because the mean of its divisors is an integer number (20170766).

Almost surely, 2^224520231 is an apocalyptic number.

224520231 is a deficient number, since it is larger than the sum of its proper divisors (98212025).

224520231 is a wasteful number, since it uses less digits than its factorization.

224520231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6162.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 224520231 is about 14983.9991657768. Note that the first 3 decimals coincide. The cubic root of 224520231 is about 607.7875879292.

Adding to 224520231 its reverse (132025422), we get a palindrome (356545653).

The spelling of 224520231 in words is "two hundred twenty-four million, five hundred twenty thousand, two hundred thirty-one".