228131767 has 2 divisors, whose sum is σ = 228131768. Its totient is φ = 228131766.

The previous prime is 228131753. The next prime is 228131801. The reversal of 228131767 is 767131822.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 228131767 - 2¹⁵ = 228098999 is a prime.

It is a super-2 number, since 2×228131767² = 104088206229084578, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228131747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114065883 + 114065884.

It is an arithmetic number, because the mean of its divisors is an integer number (114065884).

Almost surely, 2^228131767 is an apocalyptic number.

228131767 is a deficient number, since it is larger than the sum of its proper divisors (1).

228131767 is an equidigital number, since it uses as much as digits as its factorization.

228131767 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28224, while the sum is 37.

The square root of 228131767 is about 15104.0314816939. The cubic root of 228131767 is about 611.0291388587.

It can be divided in two parts, 228 and 131767, that multiplied together give a triangular number (30042876 = T₇₇₅₁).

The spelling of 228131767 in words is "two hundred twenty-eight million, one hundred thirty-one thousand, seven hundred sixty-seven".