214965871 has 4 divisors (see below), whose sum is σ = 217182112. Its totient is φ = 212749632.

The previous prime is 214965869. The next prime is 214965887. The reversal of 214965871 is 178569412.

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 214965871 - 2¹ = 214965869 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 (214965271) 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, 1107975 + ... + 1108168.

It is an arithmetic number, because the mean of its divisors is an integer number (54295528).

Almost surely, 2^214965871 is an apocalyptic number.

214965871 is a deficient number, since it is larger than the sum of its proper divisors (2216241).

214965871 is an equidigital number, since it uses as much as digits as its factorization.

214965871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2216240.

The product of its digits is 120960, while the sum is 43.

The square root of 214965871 is about 14661.7144631861. The cubic root of 214965871 is about 599.0409409746.

The spelling of 214965871 in words is "two hundred fourteen million, nine hundred sixty-five thousand, eight hundred seventy-one".