165233 has 2 divisors, whose sum is σ = 165234. Its totient is φ = 165232.

The previous prime is 165229. The next prime is 165247. The reversal of 165233 is 332561.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 142129 + 23104 = 377^2 + 152^2 .

It is an emirp because it is prime and its reverse (332561) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 165233 - 2² = 165229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82616 + 82617.

It is an arithmetic number, because the mean of its divisors is an integer number (82617).

2¹⁶⁵²³³ is an apocalyptic number.

It is an amenable number.

165233 is a deficient number, since it is larger than the sum of its proper divisors (1).

165233 is an equidigital number, since it uses as much as digits as its factorization.

165233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 540, while the sum is 20.

The square root of 165233 is about 406.4886222270. The cubic root of 165233 is about 54.8738707537.

Adding to 165233 its reverse (332561), we get a palindrome (497794).

The spelling of 165233 in words is "one hundred sixty-five thousand, two hundred thirty-three".