165293329 has 4 divisors (see below), whose sum is σ = 175016484. Its totient is φ = 155570176.

The previous prime is 165293327. The next prime is 165293357. The reversal of 165293329 is 923392561.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 68310225 + 96983104 = 8265^2 + 9848^2 .

It is a cyclic number.

It is not a de Polignac number, because 165293329 - 2¹ = 165293327 is a prime.

It is a super-2 number, since 2×165293329² = 54643769223804482, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 165293291 and 165293300.

It is not an unprimeable number, because it can be changed into a prime (165293321) 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 in 3 ways as a sum of consecutive naturals, for example, 4861552 + ... + 4861585.

It is an arithmetic number, because the mean of its divisors is an integer number (43754121).

Almost surely, 2^165293329 is an apocalyptic number.

It is an amenable number.

165293329 is a deficient number, since it is larger than the sum of its proper divisors (9723155).

165293329 is an equidigital number, since it uses as much as digits as its factorization.

165293329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9723154.

The product of its digits is 87480, while the sum is 40.

The square root of 165293329 is about 12856.6453245005. The cubic root of 165293329 is about 548.8054836032.

The spelling of 165293329 in words is "one hundred sixty-five million, two hundred ninety-three thousand, three hundred twenty-nine".