165855214 has 32 divisors (see below), whose sum is σ = 293204736. Its totient is φ = 68886720.

The previous prime is 165855203. The next prime is 165855223. The reversal of 165855214 is 412558561.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81469 + ... + 83479.

It is an arithmetic number, because the mean of its divisors is an integer number (9162648).

Almost surely, 2^165855214 is an apocalyptic number.

165855214 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

165855214 is a deficient number, since it is larger than the sum of its proper divisors (127349522).

165855214 is a wasteful number, since it uses less digits than its factorization.

165855214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2200.

The product of its digits is 48000, while the sum is 37.

The square root of 165855214 is about 12878.4787145066. The cubic root of 165855214 is about 549.4266355441.

The spelling of 165855214 in words is "one hundred sixty-five million, eight hundred fifty-five thousand, two hundred fourteen".