165864214 has 8 divisors (see below), whose sum is σ = 248861880. Its totient is φ = 82910256.

The previous prime is 165864211. The next prime is 165864217. The reversal of 165864214 is 412468561.

165864214 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (165864211) and next prime (165864217).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165864211) 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, 1297 + ... + 18259.

It is an arithmetic number, because the mean of its divisors is an integer number (31107735).

Almost surely, 2^165864214 is an apocalyptic number.

165864214 is a deficient number, since it is larger than the sum of its proper divisors (82997666).

165864214 is a wasteful number, since it uses less digits than its factorization.

165864214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21854.

The product of its digits is 46080, while the sum is 37.

The square root of 165864214 is about 12878.8281299193. The cubic root of 165864214 is about 549.4365734294.

The spelling of 165864214 in words is "one hundred sixty-five million, eight hundred sixty-four thousand, two hundred fourteen".