165142204 has 12 divisors (see below), whose sum is σ = 290296384. Its totient is φ = 82200384.

The previous prime is 165142193. The next prime is 165142247. The reversal of 165142204 is 402241561.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91677 + ... + 93460.

Almost surely, 2^165142204 is an apocalyptic number.

It is an amenable number.

165142204 is a deficient number, since it is larger than the sum of its proper divisors (125154180).

165142204 is a wasteful number, since it uses less digits than its factorization.

165142204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185364 (or 185362 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 165142204 is about 12850.7666697361. The cubic root of 165142204 is about 548.6381779645.

Adding to 165142204 its reverse (402241561), we get a palindrome (567383765).

The spelling of 165142204 in words is "one hundred sixty-five million, one hundred forty-two thousand, two hundred four".