228060531 has 12 divisors (see below), whose sum is σ = 329572152. Its totient is φ = 151970496.

The previous prime is 228060529. The next prime is 228060533. The reversal of 228060531 is 135060822.

228060531 is a `hidden beast` number, since 2 + 28 + 0 + 605 + 31 = 666.

It is an interprime number because it is at equal distance from previous prime (228060529) and next prime (228060533).

It is not a de Polignac number, because 228060531 - 2¹ = 228060529 is a prime.

It is a super-3 number, since 3×228060531³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 228060495 and 228060504.

It is not an unprimeable number, because it can be changed into a prime (228060533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21700 + ... + 30446.

It is an arithmetic number, because the mean of its divisors is an integer number (27464346).

Almost surely, 2^228060531 is an apocalyptic number.

228060531 is a deficient number, since it is larger than the sum of its proper divisors (101511621).

228060531 is a wasteful number, since it uses less digits than its factorization.

228060531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11650 (or 11647 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 228060531 is about 15101.6731192276. The cubic root of 228060531 is about 610.9655326314.

The spelling of 228060531 in words is "two hundred twenty-eight million, sixty thousand, five hundred thirty-one".