165941873 has 8 divisors (see below), whose sum is σ = 167388480. Its totient is φ = 164502000.

The previous prime is 165941851. The next prime is 165941911. The reversal of 165941873 is 378149561.

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 165941873 - 2⁸ = 165941617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165941813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56036 + ... + 58922.

It is an arithmetic number, because the mean of its divisors is an integer number (20923560).

Almost surely, 2^165941873 is an apocalyptic number.

It is an amenable number.

165941873 is a deficient number, since it is larger than the sum of its proper divisors (1446607).

165941873 is a wasteful number, since it uses less digits than its factorization.

165941873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3367.

The product of its digits is 181440, while the sum is 44.

The square root of 165941873 is about 12881.8427641390. The cubic root of 165941873 is about 549.5223103027.

The spelling of 165941873 in words is "one hundred sixty-five million, nine hundred forty-one thousand, eight hundred seventy-three".