165306313 has 8 divisors (see below), whose sum is σ = 172656000. Its totient is φ = 157970208.

The previous prime is 165306263. The next prime is 165306391. The reversal of 165306313 is 313603561.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 165306313 - 2⁹ = 165305801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165306013) 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 in 7 ways as a sum of consecutive naturals, for example, 27613 + ... + 33061.

It is an arithmetic number, because the mean of its divisors is an integer number (21582000).

Almost surely, 2^165306313 is an apocalyptic number.

It is an amenable number.

165306313 is a deficient number, since it is larger than the sum of its proper divisors (7349687).

165306313 is a wasteful number, since it uses less digits than its factorization.

165306313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6791.

The product of its (nonzero) digits is 4860, while the sum is 28.

The square root of 165306313 is about 12857.1502674582. The cubic root of 165306313 is about 548.8198530152.

Adding to 165306313 its reverse (313603561), we get a palindrome (478909874).

The spelling of 165306313 in words is "one hundred sixty-five million, three hundred six thousand, three hundred thirteen".