81482496 has 108 divisors (see below), whose sum is σ = 232562232. Its totient is φ = 25239552.

The previous prime is 81482461. The next prime is 81482497. The reversal of 81482496 is 69428418.

It is not an unprimeable number, because it can be changed into a prime (81482497) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 1031385 + ... + 1031463.

It is an arithmetic number, because the mean of its divisors is an integer number (2153354).

Almost surely, 2^81482496 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 81482496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116281116).

81482496 is an abundant number, since it is smaller than the sum of its proper divisors (151079736).

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

81482496 is an equidigital number, since it uses as much as digits as its factorization.

81482496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194 (or 101 counting only the distinct ones).

The product of its digits is 110592, while the sum is 42.

The square root of 81482496 is about 9026.7655336782. The cubic root of 81482496 is about 433.5322815592.

The spelling of 81482496 in words is "eighty-one million, four hundred eighty-two thousand, four hundred ninety-six".