228175445 has 16 divisors (see below), whose sum is σ = 290271600. Its totient is φ = 171592704.

The previous prime is 228175421. The next prime is 228175457. The reversal of 228175445 is 544571822.

It can be written as a sum of positive squares in 8 ways, for example, as 256036 + 227919409 = 506^2 + 15097^2 .

It is a cyclic number.

It is not a de Polignac number, because 228175445 - 2¹⁶ = 228109909 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 228175399 and 228175408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130799 + ... + 132531.

It is an arithmetic number, because the mean of its divisors is an integer number (18141975).

Almost surely, 2^228175445 is an apocalyptic number.

It is an amenable number.

228175445 is a deficient number, since it is larger than the sum of its proper divisors (62096155).

228175445 is a wasteful number, since it uses less digits than its factorization.

228175445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3304.

The product of its digits is 89600, while the sum is 38.

The square root of 228175445 is about 15105.4773178473. The cubic root of 228175445 is about 611.0681321534.

The spelling of 228175445 in words is "two hundred twenty-eight million, one hundred seventy-five thousand, four hundred forty-five".