165413323 has 2 divisors, whose sum is σ = 165413324. Its totient is φ = 165413322.

The previous prime is 165413321. The next prime is 165413357. The reversal of 165413323 is 323314561.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 165413323 - 2¹ = 165413321 is a prime.

Together with 165413321, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 165413291 and 165413300.

It is not a weakly prime, because it can be changed into another prime (165413321) 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, 82706661 + 82706662.

It is an arithmetic number, because the mean of its divisors is an integer number (82706662).

Almost surely, 2^165413323 is an apocalyptic number.

165413323 is a deficient number, since it is larger than the sum of its proper divisors (1).

165413323 is an equidigital number, since it uses as much as digits as its factorization.

165413323 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6480, while the sum is 28.

The square root of 165413323 is about 12861.3110917978. The cubic root of 165413323 is about 548.9382524949.

Adding to 165413323 its reverse (323314561), we get a palindrome (488727884).

The spelling of 165413323 in words is "one hundred sixty-five million, four hundred thirteen thousand, three hundred twenty-three".