81294 has 16 divisors (see below), whose sum is σ = 172368. Its totient is φ = 25472.

The previous prime is 81293. The next prime is 81299. The reversal of 81294 is 49218.

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 not an unprimeable number, because it can be changed into a prime (81293) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 297 + ... + 500.

It is an arithmetic number, because the mean of its divisors is an integer number (10773).

2⁸¹²⁹⁴ is an apocalyptic number.

81294 is an abundant number, since it is smaller than the sum of its proper divisors (91074).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86184).

81294 is a wasteful number, since it uses less digits than its factorization.

81294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819.

The product of its digits is 576, while the sum is 24.

The square root of 81294 is about 285.1210269342. The cubic root of 81294 is about 43.3197722194.

Adding to 81294 its sum of digits (24), we get a palindrome (81318).

The spelling of 81294 in words is "eighty-one thousand, two hundred ninety-four".