165125228 has 12 divisors (see below), whose sum is σ = 296779392. Its totient is φ = 80331120.

The previous prime is 165125179. The next prime is 165125239. The reversal of 165125228 is 822521561.

It is a junction number, because it is equal to n+sod(n) for n = 165125194 and 165125203.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 557708 + ... + 558003.

It is an arithmetic number, because the mean of its divisors is an integer number (24731616).

Almost surely, 2^165125228 is an apocalyptic number.

It is an amenable number.

165125228 is a deficient number, since it is larger than the sum of its proper divisors (131654164).

165125228 is a wasteful number, since it uses less digits than its factorization.

165125228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1115752 (or 1115750 counting only the distinct ones).

The product of its digits is 9600, while the sum is 32.

The square root of 165125228 is about 12850.1061474215. The cubic root of 165125228 is about 548.6193780038.

Adding to 165125228 its reverse (822521561), we get a palindrome (987646789).

The spelling of 165125228 in words is "one hundred sixty-five million, one hundred twenty-five thousand, two hundred twenty-eight".