165423112 has 16 divisors (see below), whose sum is σ = 311231340. Its totient is φ = 82428096.

The previous prime is 165423103. The next prime is 165423149. The reversal of 165423112 is 211324561.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 162970756 + 2452356 = 12766^2 + 1566^2 .

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, 32943 + ... + 37630.

Almost surely, 2^165423112 is an apocalyptic number.

It is an amenable number.

165423112 is a deficient number, since it is larger than the sum of its proper divisors (145808228).

165423112 is a wasteful number, since it uses less digits than its factorization.

165423112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70872 (or 70868 counting only the distinct ones).

The product of its digits is 1440, while the sum is 25.

The square root of 165423112 is about 12861.6916461249. The cubic root of 165423112 is about 548.9490808257.

Adding to 165423112 its reverse (211324561), we get a palindrome (376747673).

The spelling of 165423112 in words is "one hundred sixty-five million, four hundred twenty-three thousand, one hundred twelve".