228102761 has 2 divisors, whose sum is σ = 228102762. Its totient is φ = 228102760.

The previous prime is 228102731. The next prime is 228102769. The reversal of 228102761 is 167201822.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 189227536 + 38875225 = 13756^2 + 6235^2 .

It is a cyclic number.

It is not a de Polignac number, because 228102761 - 2⁶ = 228102697 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (228102769) 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, 114051380 + 114051381.

It is an arithmetic number, because the mean of its divisors is an integer number (114051381).

Almost surely, 2^228102761 is an apocalyptic number.

It is an amenable number.

228102761 is a deficient number, since it is larger than the sum of its proper divisors (1).

228102761 is an equidigital number, since it uses as much as digits as its factorization.

228102761 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 228102761 is about 15103.0712439556. The cubic root of 228102761 is about 611.0032411613.

The spelling of 228102761 in words is "two hundred twenty-eight million, one hundred two thousand, seven hundred sixty-one".