228466253 has 2 divisors, whose sum is σ = 228466254. Its totient is φ = 228466252.

The previous prime is 228466237. The next prime is 228466261. The reversal of 228466253 is 352664822.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 196056004 + 32410249 = 14002^2 + 5693^2 .

It is a cyclic number.

It is not a de Polignac number, because 228466253 - 2⁴ = 228466237 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 (228466223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114233126 + 114233127.

It is an arithmetic number, because the mean of its divisors is an integer number (114233127).

Almost surely, 2^228466253 is an apocalyptic number.

It is an amenable number.

228466253 is a deficient number, since it is larger than the sum of its proper divisors (1).

228466253 is an equidigital number, since it uses as much as digits as its factorization.

228466253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 138240, while the sum is 38.

The square root of 228466253 is about 15115.1001650667. The cubic root of 228466253 is about 611.3276226240.

The spelling of 228466253 in words is "two hundred twenty-eight million, four hundred sixty-six thousand, two hundred fifty-three".