228122693 has 2 divisors, whose sum is σ = 228122694. Its totient is φ = 228122692.

The previous prime is 228122689. The next prime is 228122731. The reversal of 228122693 is 396221822.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 167391844 + 60730849 = 12938^2 + 7793^2 .

It is a cyclic number.

It is not a de Polignac number, because 228122693 - 2² = 228122689 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228122603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114061346 + 114061347.

It is an arithmetic number, because the mean of its divisors is an integer number (114061347).

Almost surely, 2^228122693 is an apocalyptic number.

It is an amenable number.

228122693 is a deficient number, since it is larger than the sum of its proper divisors (1).

228122693 is an equidigital number, since it uses as much as digits as its factorization.

228122693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 35.

The square root of 228122693 is about 15103.7310953287. The cubic root of 228122693 is about 611.0210374707.

The spelling of 228122693 in words is "two hundred twenty-eight million, one hundred twenty-two thousand, six hundred ninety-three".