228495169 has 4 divisors (see below), whose sum is σ = 261137344. Its totient is φ = 195852996.

The previous prime is 228495149. The next prime is 228495187. The reversal of 228495169 is 961594822.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 961594822 = 2 ⋅480797411.

It is a cyclic number.

It is not a de Polignac number, because 228495169 - 2⁹ = 228494657 is a prime.

It is a super-2 number, since 2×228495169² = 104420084512677122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228495149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16321077 + ... + 16321090.

It is an arithmetic number, because the mean of its divisors is an integer number (65284336).

Almost surely, 2^228495169 is an apocalyptic number.

It is an amenable number.

228495169 is a deficient number, since it is larger than the sum of its proper divisors (32642175).

228495169 is an equidigital number, since it uses as much as digits as its factorization.

228495169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32642174.

The product of its digits is 311040, while the sum is 46.

The square root of 228495169 is about 15116.0566617091. The cubic root of 228495169 is about 611.3534125800.

The spelling of 228495169 in words is "two hundred twenty-eight million, four hundred ninety-five thousand, one hundred sixty-nine".