81214 has 8 divisors (see below), whose sum is σ = 139248. Its totient is φ = 34800.

The previous prime is 81203. The next prime is 81223. The reversal of 81214 is 41218.

It is a happy number.

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

It is an alternating number because its digits alternate between even and odd.

It is a plaindrome in base 9.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 2887 + ... + 2914.

It is an arithmetic number, because the mean of its divisors is an integer number (17406).

2⁸¹²¹⁴ is an apocalyptic number.

81214 is a deficient number, since it is larger than the sum of its proper divisors (58034).

81214 is a wasteful number, since it uses less digits than its factorization.

81214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5810.

The product of its digits is 64, while the sum is 16.

The square root of 81214 is about 284.9807011010. The cubic root of 81214 is about 43.3055574794.

The spelling of 81214 in words is "eighty-one thousand, two hundred fourteen".