81132096 has 28 divisors (see below), whose sum is σ = 214662512. Its totient is φ = 27043968.

The previous prime is 81132091. The next prime is 81132113. The reversal of 81132096 is 69023118.

It is not an unprimeable number, because it can be changed into a prime (81132091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211090 + ... + 211473.

Almost surely, 2^81132096 is an apocalyptic number.

It is an amenable number.

81132096 is an abundant number, since it is smaller than the sum of its proper divisors (133530416).

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

81132096 is a wasteful number, since it uses less digits than its factorization.

81132096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422578 (or 422568 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 81132096 is about 9007.3356771023. The cubic root of 81132096 is about 432.9099475464.

The spelling of 81132096 in words is "eighty-one million, one hundred thirty-two thousand, ninety-six".