165708373 has 4 divisors (see below), whose sum is σ = 165906720. Its totient is φ = 165510028.

The previous prime is 165708371. The next prime is 165708383. The reversal of 165708373 is 373807561.

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, and also an emirpimes, since its reverse is a distinct semiprime: 373807561 = 3001 ⋅124561.

It is a cyclic number.

It is not a de Polignac number, because 165708373 - 2¹ = 165708371 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165708371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97915 + ... + 99592.

It is an arithmetic number, because the mean of its divisors is an integer number (41476680).

Almost surely, 2^165708373 is an apocalyptic number.

It is an amenable number.

165708373 is a deficient number, since it is larger than the sum of its proper divisors (198347).

165708373 is an equidigital number, since it uses as much as digits as its factorization.

165708373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198346.

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 165708373 is about 12872.7764293489. The cubic root of 165708373 is about 549.2644415114.

The spelling of 165708373 in words is "one hundred sixty-five million, seven hundred eight thousand, three hundred seventy-three".