165000450 has 48 divisors (see below), whose sum is σ = 414991296. Its totient is φ = 43377600.

The previous prime is 165000439. The next prime is 165000457. The reversal of 165000450 is 54000561.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (165000457) 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 23 ways as a sum of consecutive naturals, for example, 2904 + ... + 18396.

It is an arithmetic number, because the mean of its divisors is an integer number (8645652).

Almost surely, 2^165000450 is an apocalyptic number.

165000450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 165000450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (207495648).

165000450 is an abundant number, since it is smaller than the sum of its proper divisors (249990846).

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

165000450 is a wasteful number, since it uses less digits than its factorization.

165000450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15579 (or 15574 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 165000450 is about 12845.2500948794. The cubic root of 165000450 is about 548.4811538616.

The spelling of 165000450 in words is "one hundred sixty-five million, four hundred fifty", and thus it is an aban number.