228162293 has 2 divisors, whose sum is σ = 228162294. Its totient is φ = 228162292.

The previous prime is 228162271. The next prime is 228162329. The reversal of 228162293 is 392261822.

Together with next prime (228162329) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 210337009 + 17825284 = 14503^2 + 4222^2 .

It is a cyclic number.

It is not a de Polignac number, because 228162293 - 2¹² = 228158197 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 (228162223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114081146 + 114081147.

It is an arithmetic number, because the mean of its divisors is an integer number (114081147).

Almost surely, 2^228162293 is an apocalyptic number.

It is an amenable number.

228162293 is a deficient number, since it is larger than the sum of its proper divisors (1).

228162293 is an equidigital number, since it uses as much as digits as its factorization.

228162293 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 228162293 is about 15105.0419727984. The cubic root of 228162293 is about 611.0563913012.

The spelling of 228162293 in words is "two hundred twenty-eight million, one hundred sixty-two thousand, two hundred ninety-three".