228112061 has 2 divisors, whose sum is σ = 228112062. Its totient is φ = 228112060.

The previous prime is 228112037. The next prime is 228112111. The reversal of 228112061 is 160211822.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 183087961 + 45024100 = 13531^2 + 6710^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-228112061 is a prime.

It is a super-2 number, since 2×228112061² = 104070224747335442, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228112021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114056030 + 114056031.

It is an arithmetic number, because the mean of its divisors is an integer number (114056031).

Almost surely, 2^228112061 is an apocalyptic number.

It is an amenable number.

228112061 is a deficient number, since it is larger than the sum of its proper divisors (1).

228112061 is an equidigital number, since it uses as much as digits as its factorization.

228112061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 228112061 is about 15103.3791252157. The cubic root of 228112061 is about 611.0115448061.

Adding to 228112061 its reverse (160211822), we get a palindrome (388323883).

The spelling of 228112061 in words is "two hundred twenty-eight million, one hundred twelve thousand, sixty-one".