81182696 has 16 divisors (see below), whose sum is σ = 173963040. Its totient is φ = 34792560.

The previous prime is 81182683. The next prime is 81182713. The reversal of 81182696 is 69628118.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 724790 + ... + 724901.

It is an arithmetic number, because the mean of its divisors is an integer number (10872690).

Almost surely, 2^81182696 is an apocalyptic number.

It is an amenable number.

81182696 is an abundant number, since it is smaller than the sum of its proper divisors (92780344).

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

81182696 is a wasteful number, since it uses less digits than its factorization.

81182696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1449704 (or 1449700 counting only the distinct ones).

The product of its digits is 41472, while the sum is 41.

The square root of 81182696 is about 9010.1440610015. The cubic root of 81182696 is about 432.9999271068. Note that the first 4 decimals are identical.

Adding to 81182696 its sum of digits (41), we get a cube (81182737 = 433³).

The spelling of 81182696 in words is "eighty-one million, one hundred eighty-two thousand, six hundred ninety-six".