171215214 has 16 divisors (see below), whose sum is σ = 342814080. Its totient is φ = 57007800.

The previous prime is 171215203. The next prime is 171215249. The reversal of 171215214 is 412512171.

171215214 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10012 + ... + 21039.

It is an arithmetic number, because the mean of its divisors is an integer number (21425880).

Almost surely, 2^171215214 is an apocalyptic number.

171215214 is an abundant number, since it is smaller than the sum of its proper divisors (171598866).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

171215214 is a wasteful number, since it uses less digits than its factorization.

171215214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31975.

The product of its digits is 560, while the sum is 24.

The square root of 171215214 is about 13084.9231560602. The cubic root of 171215214 is about 555.2826674701.

Adding to 171215214 its reverse (412512171), we get a palindrome (583727385).

The spelling of 171215214 in words is "one hundred seventy-one million, two hundred fifteen thousand, two hundred fourteen".