81110682 has 12 divisors (see below), whose sum is σ = 175739850. Its totient is φ = 27036888.

The previous prime is 81110681. The next prime is 81110699. The reversal of 81110682 is 28601118.

It can be written as a sum of positive squares in only one way, i.e., 79762761 + 1347921 = 8931^2 + 1161^2 .

It is not an unprimeable number, because it can be changed into a prime (81110681) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2253057 + ... + 2253092.

Almost surely, 2^81110682 is an apocalyptic number.

81110682 is an abundant number, since it is smaller than the sum of its proper divisors (94629168).

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

81110682 is a wasteful number, since it uses less digits than its factorization.

81110682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4506157 (or 4506154 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 27.

The square root of 81110682 is about 9006.1469008672. The cubic root of 81110682 is about 432.8718567874.

The spelling of 81110682 in words is "eighty-one million, one hundred ten thousand, six hundred eighty-two".