165342329 has 2 divisors, whose sum is σ = 165342330. Its totient is φ = 165342328.

The previous prime is 165342293. The next prime is 165342341. The reversal of 165342329 is 923243561.

Together with previous prime (165342293) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 123765625 + 41576704 = 11125^2 + 6448^2 .

It is a cyclic number.

It is not a de Polignac number, because 165342329 - 2¹² = 165338233 is a prime.

It is not a weakly prime, because it can be changed into another prime (161342329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82671164 + 82671165.

It is an arithmetic number, because the mean of its divisors is an integer number (82671165).

Almost surely, 2^165342329 is an apocalyptic number.

It is an amenable number.

165342329 is a deficient number, since it is larger than the sum of its proper divisors (1).

165342329 is an equidigital number, since it uses as much as digits as its factorization.

165342329 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38880, while the sum is 35.

The square root of 165342329 is about 12858.5508125916. The cubic root of 165342329 is about 548.8597080377.

The spelling of 165342329 in words is "one hundred sixty-five million, three hundred forty-two thousand, three hundred twenty-nine".