227585289481 has 27 divisors (see below), whose sum is σ = 258670475469. Its totient is φ = 200078544600.

The previous prime is 227585289469. The next prime is 227585289497. The reversal of 227585289481 is 184982585722.

The square root of 227585289481 is 477059.

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

It is not a de Polignac number, because 227585289481 - 2⁹ = 227585288969 is a prime.

It is a super-2 number, since 2×227585289481² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (227585283481) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 162676420 + ... + 162677818.

Almost surely, 2^227585289481 is an apocalyptic number.

227585289481 is the 477059-th square number.

227585289481 is the 238530-th centered octagonal number.

It is an amenable number.

227585289481 is a deficient number, since it is larger than the sum of its proper divisors (31085185988).

227585289481 is an frugal number, since it uses more digits than its factorization.

227585289481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2882 (or 1441 counting only the distinct ones).

The product of its digits is 25804800, while the sum is 61.

The spelling of 227585289481 in words is "two hundred twenty-seven billion, five hundred eighty-five million, two hundred eighty-nine thousand, four hundred eighty-one".