228067237 has 2 divisors, whose sum is σ = 228067238. Its totient is φ = 228067236.

The previous prime is 228067193. The next prime is 228067247. The reversal of 228067237 is 732760822.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 129640996 + 98426241 = 11386^2 + 9921^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-228067237 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 228067196 and 228067205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228067247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114033618 + 114033619.

It is an arithmetic number, because the mean of its divisors is an integer number (114033619).

Almost surely, 2^228067237 is an apocalyptic number.

It is an amenable number.

228067237 is a deficient number, since it is larger than the sum of its proper divisors (1).

228067237 is an equidigital number, since it uses as much as digits as its factorization.

228067237 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56448, while the sum is 37.

The square root of 228067237 is about 15101.8951459742. The cubic root of 228067237 is about 610.9715209461.

The spelling of 228067237 in words is "two hundred twenty-eight million, sixty-seven thousand, two hundred thirty-seven".