224481665 has 8 divisors (see below), whose sum is σ = 270058920. Its totient is φ = 179131392.

The previous prime is 224481641. The next prime is 224481667. The reversal of 224481665 is 566184422.

It can be written as a sum of positive squares in 4 ways, for example, as 32160241 + 192321424 = 5671^2 + 13868^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 224481665 - 2¹⁴ = 224465281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (224481667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54560 + ... + 58529.

It is an arithmetic number, because the mean of its divisors is an integer number (33757365).

Almost surely, 2^224481665 is an apocalyptic number.

It is an amenable number.

224481665 is a deficient number, since it is larger than the sum of its proper divisors (45577255).

224481665 is a wasteful number, since it uses less digits than its factorization.

224481665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113491.

The product of its digits is 92160, while the sum is 38.

The square root of 224481665 is about 14982.7122044041. The cubic root of 224481665 is about 607.7527859008.

The spelling of 224481665 in words is "two hundred twenty-four million, four hundred eighty-one thousand, six hundred sixty-five".