165273185 has 16 divisors (see below), whose sum is σ = 247266432. Its totient is φ = 103027200.

The previous prime is 165273151. The next prime is 165273203. The reversal of 165273185 is 581372561.

It is not a de Polignac number, because 165273185 - 2¹⁰ = 165272161 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 214256 + ... + 215025.

It is an arithmetic number, because the mean of its divisors is an integer number (15454152).

Almost surely, 2^165273185 is an apocalyptic number.

It is an amenable number.

165273185 is a deficient number, since it is larger than the sum of its proper divisors (81993247).

165273185 is a wasteful number, since it uses less digits than its factorization.

165273185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429304.

The product of its digits is 50400, while the sum is 38.

The square root of 165273185 is about 12855.8618925376. The cubic root of 165273185 is about 548.7831887192.

The spelling of 165273185 in words is "one hundred sixty-five million, two hundred seventy-three thousand, one hundred eighty-five".