224133561 has 10 divisors (see below), whose sum is σ = 334816922. Its totient is φ = 149422320.

The previous prime is 224133541. The next prime is 224133571. The reversal of 224133561 is 165331422.

It can be written as a sum of positive squares in only one way, i.e., 184443561 + 39690000 = 13581^2 + 6300^2 .

It is not a de Polignac number, because 224133561 - 2²² = 219939257 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (224133541) 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 9 ways as a sum of consecutive naturals, for example, 1383460 + ... + 1383621.

Almost surely, 2^224133561 is an apocalyptic number.

It is an amenable number.

224133561 is a deficient number, since it is larger than the sum of its proper divisors (110683361).

224133561 is an equidigital number, since it uses as much as digits as its factorization.

224133561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2767093 (or 2767084 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 224133561 is about 14971.0908420195. The cubic root of 224133561 is about 607.4384757081.

Adding to 224133561 its reverse (165331422), we get a palindrome (389464983).

The spelling of 224133561 in words is "two hundred twenty-four million, one hundred thirty-three thousand, five hundred sixty-one".