165225354 has 48 divisors (see below), whose sum is σ = 397677600. Its totient is φ = 45577056.

The previous prime is 165225343. The next prime is 165225373. The reversal of 165225354 is 453522561.

It is a congruent number.

It is an unprimeable number.

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, 1164 + ... + 18215.

It is an arithmetic number, because the mean of its divisors is an integer number (8284950).

Almost surely, 2^165225354 is an apocalyptic number.

165225354 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 165225354, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (198838800).

165225354 is an abundant number, since it is smaller than the sum of its proper divisors (232452246).

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

165225354 is a wasteful number, since it uses less digits than its factorization.

165225354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19427 (or 19420 counting only the distinct ones).

The product of its digits is 36000, while the sum is 33.

The square root of 165225354 is about 12854.0014781390. The cubic root of 165225354 is about 548.7302432856.

The spelling of 165225354 in words is "one hundred sixty-five million, two hundred twenty-five thousand, three hundred fifty-four".