165132317 has 4 divisors (see below), whose sum is σ = 188722656. Its totient is φ = 141541980.

The previous prime is 165132311. The next prime is 165132323. The reversal of 165132317 is 713231561.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (165132311) and next prime (165132323).

It is a cyclic number.

It is not a de Polignac number, because 165132317 - 2²² = 160938013 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 165132317.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165132311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11795159 + ... + 11795172.

It is an arithmetic number, because the mean of its divisors is an integer number (47180664).

Almost surely, 2^165132317 is an apocalyptic number.

It is an amenable number.

165132317 is a deficient number, since it is larger than the sum of its proper divisors (23590339).

165132317 is an equidigital number, since it uses as much as digits as its factorization.

165132317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23590338.

The product of its digits is 3780, while the sum is 29.

The square root of 165132317 is about 12850.3819787585. The cubic root of 165132317 is about 548.6272288274.

Adding to 165132317 its reverse (713231561), we get a palindrome (878363878).

The spelling of 165132317 in words is "one hundred sixty-five million, one hundred thirty-two thousand, three hundred seventeen".