165433 has 4 divisors (see below), whose sum is σ = 174160. Its totient is φ = 156708.

The previous prime is 165397. The next prime is 165437. The reversal of 165433 is 334561.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 165433 - 2¹⁷ = 34361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4335 + ... + 4372.

It is an arithmetic number, because the mean of its divisors is an integer number (43540).

2¹⁶⁵⁴³³ is an apocalyptic number.

It is an amenable number.

165433 is a deficient number, since it is larger than the sum of its proper divisors (8727).

165433 is an equidigital number, since it uses as much as digits as its factorization.

165433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8726.

The product of its digits is 1080, while the sum is 22.

The square root of 165433 is about 406.7345571746. The cubic root of 165433 is about 54.8960018234.

Adding to 165433 its reverse (334561), we get a palindrome (499994).

The spelling of 165433 in words is "one hundred sixty-five thousand, four hundred thirty-three".