224152281 has 12 divisors (see below), whose sum is σ = 334940580. Its totient is φ = 144281760.

The previous prime is 224152277. The next prime is 224152301. The reversal of 224152281 is 182251422.

224152281 is a `hidden beast` number, since 22 + 41 + 522 + 81 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 159896025 + 64256256 = 12645^2 + 8016^2 .

It is not a de Polignac number, because 224152281 - 2² = 224152277 is a prime.

It is a super-2 number, since 2×224152281² = 100488490155005922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (224152231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 429150 + ... + 429671.

It is an arithmetic number, because the mean of its divisors is an integer number (27911715).

Almost surely, 2^224152281 is an apocalyptic number.

It is an amenable number.

224152281 is a deficient number, since it is larger than the sum of its proper divisors (110788299).

224152281 is a wasteful number, since it uses less digits than its factorization.

224152281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858856 (or 858853 counting only the distinct ones).

The product of its digits is 2560, while the sum is 27.

The square root of 224152281 is about 14971.7160339087. The cubic root of 224152281 is about 607.4553866542.

The spelling of 224152281 in words is "two hundred twenty-four million, one hundred fifty-two thousand, two hundred eighty-one".