16213271 has 4 divisors (see below), whose sum is σ = 16227192. Its totient is φ = 16199352.

The previous prime is 16213247. The next prime is 16213273. The reversal of 16213271 is 17231261.

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 16213271 - 2⁶ = 16213207 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 (16213273) 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, 5036 + ... + 7601.

It is an arithmetic number, because the mean of its divisors is an integer number (4056798).

Almost surely, 2^16213271 is an apocalyptic number.

16213271 is a deficient number, since it is larger than the sum of its proper divisors (13921).

16213271 is a wasteful number, since it uses less digits than its factorization.

16213271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13920.

The product of its digits is 504, while the sum is 23.

The square root of 16213271 is about 4026.5706252343. The cubic root of 16213271 is about 253.0988745276.

The spelling of 16213271 in words is "sixteen million, two hundred thirteen thousand, two hundred seventy-one".