165223203 has 8 divisors (see below), whose sum is σ = 222952128. Its totient is φ = 108821544.

The previous prime is 165223171. The next prime is 165223229. The reversal of 165223203 is 302322561.

165223203 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 165223203 - 2⁵ = 165223171 is a prime.

It is not an unprimeable number, because it can be changed into a prime (165223103) 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, 331525 + ... + 332022.

It is an arithmetic number, because the mean of its divisors is an integer number (27869016).

Almost surely, 2^165223203 is an apocalyptic number.

165223203 is a deficient number, since it is larger than the sum of its proper divisors (57728925).

165223203 is an equidigital number, since it uses as much as digits as its factorization.

165223203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663633.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 165223203 is about 12853.9178074235. The cubic root of 165223203 is about 548.7278620452.

Adding to 165223203 its reverse (302322561), we get a palindrome (467545764).

The spelling of 165223203 in words is "one hundred sixty-five million, two hundred twenty-three thousand, two hundred three".