165333317 has 2 divisors, whose sum is σ = 165333318. Its totient is φ = 165333316.

The previous prime is 165333283. The next prime is 165333319. The reversal of 165333317 is 713333561.

165333317 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 113507716 + 51825601 = 10654^2 + 7199^2 .

It is a cyclic number.

It is not a de Polignac number, because 165333317 - 2²⁰ = 164284741 is a prime.

Together with 165333319, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165333319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82666658 + 82666659.

It is an arithmetic number, because the mean of its divisors is an integer number (82666659).

Almost surely, 2^165333317 is an apocalyptic number.

It is an amenable number.

165333317 is a deficient number, since it is larger than the sum of its proper divisors (1).

165333317 is an equidigital number, since it uses as much as digits as its factorization.

165333317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17010, while the sum is 32.

The square root of 165333317 is about 12858.2003795243. The cubic root of 165333317 is about 548.8497359723.

Adding to 165333317 its reverse (713333561), we get a palindrome (878666878).

The spelling of 165333317 in words is "one hundred sixty-five million, three hundred thirty-three thousand, three hundred seventeen".