228081061 has 16 divisors (see below), whose sum is σ = 267112944. Its totient is φ = 192789504.

The previous prime is 228081059. The next prime is 228081067. The reversal of 228081061 is 160180822.

It can be written as a sum of positive squares in 8 ways, for example, as 64496961 + 163584100 = 8031^2 + 12790^2 .

It is a cyclic number.

It is not a de Polignac number, because 228081061 - 2¹ = 228081059 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228081067) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5770 + ... + 22123.

It is an arithmetic number, because the mean of its divisors is an integer number (16694559).

Almost surely, 2^228081061 is an apocalyptic number.

It is an amenable number.

228081061 is a deficient number, since it is larger than the sum of its proper divisors (39031883).

228081061 is a wasteful number, since it uses less digits than its factorization.

228081061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27960.

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 228081061 is about 15102.3528299401. The cubic root of 228081061 is about 610.9838651123.

The spelling of 228081061 in words is "two hundred twenty-eight million, eighty-one thousand, sixty-one".