224749839572281 has 3 divisors (see below), whose sum is σ = 224749854563941. Its totient is φ = 224749824580622.

The previous prime is 224749839572249. The next prime is 224749839572327. The reversal of 224749839572281 is 182275938947422.

The square root of 224749839572281 is 14991659.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 224749839572281 - 2⁵ = 224749839572249 is a prime.

It is a super-3 number, since 3×224749839572281³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (224749839572081) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 7495830 + ... + 22487488.

Almost surely, 2^{224749839572281} is an apocalyptic number.

224749839572281 is the 14991659-th square number.

224749839572281 is the 7495830-th centered octagonal number.

It is an amenable number.

224749839572281 is a deficient number, since it is larger than the sum of its proper divisors (14991660).

224749839572281 is an frugal number, since it uses more digits than its factorization.

224749839572281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29983318 (or 14991659 counting only the distinct ones).

The product of its digits is 975421440, while the sum is 73.

The spelling of 224749839572281 in words is "two hundred twenty-four trillion, seven hundred forty-nine billion, eight hundred thirty-nine million, five hundred seventy-two thousand, two hundred eighty-one".