165313307 has 8 divisors (see below), whose sum is σ = 169513776. Its totient is φ = 161152992.

The previous prime is 165313303. The next prime is 165313327. The reversal of 165313307 is 703313561.

It is a happy number.

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 165313307 - 2² = 165313303 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 165313307.

It is not an unprimeable number, because it can be changed into a prime (165313303) 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, 1613 + ... + 18254.

It is an arithmetic number, because the mean of its divisors is an integer number (21189222).

Almost surely, 2^165313307 is an apocalyptic number.

165313307 is a deficient number, since it is larger than the sum of its proper divisors (4200469).

165313307 is a wasteful number, since it uses less digits than its factorization.

165313307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20077.

The product of its (nonzero) digits is 5670, while the sum is 29.

The square root of 165313307 is about 12857.4222533135. The cubic root of 165313307 is about 548.8275929735.

Adding to 165313307 its reverse (703313561), we get a palindrome (868626868).

The spelling of 165313307 in words is "one hundred sixty-five million, three hundred thirteen thousand, three hundred seven".