228801269 has 2 divisors, whose sum is σ = 228801270. Its totient is φ = 228801268.

The previous prime is 228801227. The next prime is 228801299. The reversal of 228801269 is 962108822.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 127396369 + 101404900 = 11287^2 + 10070^2 .

It is a cyclic number.

It is not a de Polignac number, because 228801269 - 2¹⁶ = 228735733 is a prime.

It is a super-2 number, since 2×228801269² = 104700041392020722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228801299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114400634 + 114400635.

It is an arithmetic number, because the mean of its divisors is an integer number (114400635).

Almost surely, 2^228801269 is an apocalyptic number.

It is an amenable number.

228801269 is a deficient number, since it is larger than the sum of its proper divisors (1).

228801269 is an equidigital number, since it uses as much as digits as its factorization.

228801269 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 228801269 is about 15126.1782681548. The cubic root of 228801269 is about 611.6262874629.

The spelling of 228801269 in words is "two hundred twenty-eight million, eight hundred one thousand, two hundred sixty-nine".