228148757 has 2 divisors, whose sum is σ = 228148758. Its totient is φ = 228148756.

The previous prime is 228148727. The next prime is 228148783. The reversal of 228148757 is 757841822.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 225030001 + 3118756 = 15001^2 + 1766^2 .

It is a cyclic number.

It is not a de Polignac number, because 228148757 - 2¹⁸ = 227886613 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 (228148727) 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, 114074378 + 114074379.

It is an arithmetic number, because the mean of its divisors is an integer number (114074379).

Almost surely, 2^228148757 is an apocalyptic number.

It is an amenable number.

228148757 is a deficient number, since it is larger than the sum of its proper divisors (1).

228148757 is an equidigital number, since it uses as much as digits as its factorization.

228148757 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 250880, while the sum is 44.

The square root of 228148757 is about 15104.5939038426. The cubic root of 228148757 is about 611.0443071793.

The spelling of 228148757 in words is "two hundred twenty-eight million, one hundred forty-eight thousand, seven hundred fifty-seven".