228047069 has 2 divisors, whose sum is σ = 228047070. Its totient is φ = 228047068.

The previous prime is 228047059. The next prime is 228047089. The reversal of 228047069 is 960740822.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 225390169 + 2656900 = 15013^2 + 1630^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-228047069 is a prime.

It is a super-2 number, since 2×228047069² = 104010931358981522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228047059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114023534 + 114023535.

It is an arithmetic number, because the mean of its divisors is an integer number (114023535).

Almost surely, 2^228047069 is an apocalyptic number.

It is an amenable number.

228047069 is a deficient number, since it is larger than the sum of its proper divisors (1).

228047069 is an equidigital number, since it uses as much as digits as its factorization.

228047069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 228047069 is about 15101.2274004466. The cubic root of 228047069 is about 610.9535109986.

The spelling of 228047069 in words is "two hundred twenty-eight million, forty-seven thousand, sixty-nine".