165126228 has 24 divisors (see below), whose sum is σ = 393493632. Its totient is φ = 53870784.

The previous prime is 165126193. The next prime is 165126233. The reversal of 165126228 is 822621561.

It is a congruent number.

It is an unprimeable number.

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, 145825 + ... + 146952.

It is an arithmetic number, because the mean of its divisors is an integer number (16395568).

Almost surely, 2^165126228 is an apocalyptic number.

It is an amenable number.

165126228 is an abundant number, since it is smaller than the sum of its proper divisors (228367404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

165126228 is a wasteful number, since it uses less digits than its factorization.

165126228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292831 (or 292829 counting only the distinct ones).

The product of its digits is 11520, while the sum is 33.

The square root of 165126228 is about 12850.1450575470. The cubic root of 165126228 is about 548.6204854830.

Adding to 165126228 its reverse (822621561), we get a palindrome (987747789).

The spelling of 165126228 in words is "one hundred sixty-five million, one hundred twenty-six thousand, two hundred twenty-eight".