165230172 has 24 divisors (see below), whose sum is σ = 428374800. Its totient is φ = 55076688.

The previous prime is 165230161. The next prime is 165230179. The reversal of 165230172 is 271032561.

It is a happy number.

165230172 is a `hidden beast` number, since 1 + 652 + 3 + 0 + 1 + 7 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165230179) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 764847 + ... + 765062.

It is an arithmetic number, because the mean of its divisors is an integer number (17848950).

Almost surely, 2^165230172 is an apocalyptic number.

165230172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

165230172 is an abundant number, since it is smaller than the sum of its proper divisors (263144628).

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

165230172 is a wasteful number, since it uses less digits than its factorization.

165230172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1529922 (or 1529914 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 165230172 is about 12854.1888892298. The cubic root of 165230172 is about 548.7355769235.

The spelling of 165230172 in words is "one hundred sixty-five million, two hundred thirty thousand, one hundred seventy-two".