214891 has 2 divisors, whose sum is σ = 214892. Its totient is φ = 214890.

The previous prime is 214883. The next prime is 214913. The reversal of 214891 is 198412.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 214891 - 2³ = 214883 is a prime.

It is not a weakly prime, because it can be changed into another prime (214811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107445 + 107446.

It is an arithmetic number, because the mean of its divisors is an integer number (107446).

2²¹⁴⁸⁹¹ is an apocalyptic number.

214891 is a deficient number, since it is larger than the sum of its proper divisors (1).

214891 is an equidigital number, since it uses as much as digits as its factorization.

214891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 576, while the sum is 25.

The square root of 214891 is about 463.5633721510. The cubic root of 214891 is about 59.8971385744.

The spelling of 214891 in words is "two hundred fourteen thousand, eight hundred ninety-one".