228249377 has 2 divisors, whose sum is σ = 228249378. Its totient is φ = 228249376.

The previous prime is 228249331. The next prime is 228249383. The reversal of 228249377 is 773942822.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 225120016 + 3129361 = 15004^2 + 1769^2 .

It is a cyclic number.

It is not a de Polignac number, because 228249377 - 2¹⁶ = 228183841 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (228249397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114124688 + 114124689.

It is an arithmetic number, because the mean of its divisors is an integer number (114124689).

Almost surely, 2^228249377 is an apocalyptic number.

It is an amenable number.

228249377 is a deficient number, since it is larger than the sum of its proper divisors (1).

228249377 is an equidigital number, since it uses as much as digits as its factorization.

228249377 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 338688, while the sum is 44.

The square root of 228249377 is about 15107.9243114334. The cubic root of 228249377 is about 611.1341232020.

The spelling of 228249377 in words is "two hundred twenty-eight million, two hundred forty-nine thousand, three hundred seventy-seven".