165033233 has 2 divisors, whose sum is σ = 165033234. Its totient is φ = 165033232.

The previous prime is 165033199. The next prime is 165033247. The reversal of 165033233 is 332330561.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 124367104 + 40666129 = 11152^2 + 6377^2 .

It is a cyclic number.

It is not a de Polignac number, because 165033233 - 2²⁰ = 163984657 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (165030233) 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 as a sum of consecutive naturals, namely, 82516616 + 82516617.

It is an arithmetic number, because the mean of its divisors is an integer number (82516617).

Almost surely, 2^165033233 is an apocalyptic number.

It is an amenable number.

165033233 is a deficient number, since it is larger than the sum of its proper divisors (1).

165033233 is an equidigital number, since it uses as much as digits as its factorization.

165033233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4860, while the sum is 26.

The square root of 165033233 is about 12846.5261063059. The cubic root of 165033233 is about 548.5174763220.

Adding to 165033233 its reverse (332330561), we get a palindrome (497363794).

The spelling of 165033233 in words is "one hundred sixty-five million, thirty-three thousand, two hundred thirty-three".