165841343 has 4 divisors (see below), whose sum is σ = 171560040. Its totient is φ = 160122648.

The previous prime is 165841297. The next prime is 165841349. The reversal of 165841343 is 343148561.

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

It is a cyclic number.

It is not a de Polignac number, because 165841343 - 2¹⁴ = 165824959 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 (165841349) 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, 2859305 + ... + 2859362.

It is an arithmetic number, because the mean of its divisors is an integer number (42890010).

Almost surely, 2^165841343 is an apocalyptic number.

165841343 is a deficient number, since it is larger than the sum of its proper divisors (5718697).

165841343 is an equidigital number, since it uses as much as digits as its factorization.

165841343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5718696.

The product of its digits is 34560, while the sum is 35.

The square root of 165841343 is about 12877.9401691420. The cubic root of 165841343 is about 549.4113183504.

The spelling of 165841343 in words is "one hundred sixty-five million, eight hundred forty-one thousand, three hundred forty-three".