228711169 has 8 divisors (see below), whose sum is σ = 230702472. Its totient is φ = 226728960.

The previous prime is 228711107. The next prime is 228711173. The reversal of 228711169 is 961117822.

It can be written as a sum of positive squares in 4 ways, for example, as 4460544 + 224250625 = 2112^2 + 14975^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 228711169 - 2¹⁷ = 228580097 is a prime.

It is a super-2 number, since 2×228711169² = 104617597650693122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228711269) 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 in 7 ways as a sum of consecutive naturals, for example, 54117 + ... + 58189.

It is an arithmetic number, because the mean of its divisors is an integer number (28837809).

Almost surely, 2^228711169 is an apocalyptic number.

It is an amenable number.

228711169 is a deficient number, since it is larger than the sum of its proper divisors (1991303).

228711169 is a wasteful number, since it uses less digits than its factorization.

228711169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4547.

The product of its digits is 12096, while the sum is 37.

The square root of 228711169 is about 15123.1996945091. The cubic root of 228711169 is about 611.5459925065.

It can be divided in two parts, 2287 and 11169, that added together give a square (13456 = 116²).

The spelling of 228711169 in words is "two hundred twenty-eight million, seven hundred eleven thousand, one hundred sixty-nine".