228261767 has 2 divisors, whose sum is σ = 228261768. Its totient is φ = 228261766.

The previous prime is 228261749. The next prime is 228261791. The reversal of 228261767 is 767162822.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 228261767 - 2⁸ = 228261511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228261707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114130883 + 114130884.

It is an arithmetic number, because the mean of its divisors is an integer number (114130884).

Almost surely, 2^228261767 is an apocalyptic number.

228261767 is a deficient number, since it is larger than the sum of its proper divisors (1).

228261767 is an equidigital number, since it uses as much as digits as its factorization.

228261767 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 112896, while the sum is 41.

The square root of 228261767 is about 15108.3343555800. The cubic root of 228261767 is about 611.1451810121.

The spelling of 228261767 in words is "two hundred twenty-eight million, two hundred sixty-one thousand, seven hundred sixty-seven".