81104096 has 12 divisors (see below), whose sum is σ = 159673752. Its totient is φ = 40552032.

The previous prime is 81104087. The next prime is 81104099. The reversal of 81104096 is 69040118.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81104099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1267220 + ... + 1267283.

It is an arithmetic number, because the mean of its divisors is an integer number (13306146).

Almost surely, 2^81104096 is an apocalyptic number.

It is an amenable number.

81104096 is a deficient number, since it is larger than the sum of its proper divisors (78569656).

81104096 is a wasteful number, since it uses less digits than its factorization.

81104096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2534513 (or 2534505 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 81104096 is about 9005.7812542833. The cubic root of 81104096 is about 432.8601404054.

The spelling of 81104096 in words is "eighty-one million, one hundred four thousand, ninety-six".