165425212 has 12 divisors (see below), whose sum is σ = 290355520. Its totient is φ = 82466496.

The previous prime is 165425209. The next prime is 165425213. The reversal of 165425212 is 212524561.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165425213) 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 3 ways as a sum of consecutive naturals, for example, 60012 + ... + 62707.

Almost surely, 2^165425212 is an apocalyptic number.

It is an amenable number.

165425212 is a deficient number, since it is larger than the sum of its proper divisors (124930308).

165425212 is a wasteful number, since it uses less digits than its factorization.

165425212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123060 (or 123058 counting only the distinct ones).

The product of its digits is 4800, while the sum is 28.

The square root of 165425212 is about 12861.7732836495. The cubic root of 165425212 is about 548.9514037341.

Adding to 165425212 its reverse (212524561), we get a palindrome (377949773).

The spelling of 165425212 in words is "one hundred sixty-five million, four hundred twenty-five thousand, two hundred twelve".