81448096 has 12 divisors (see below), whose sum is σ = 160351002. Its totient is φ = 40724032.

The previous prime is 81448061. The next prime is 81448127. The reversal of 81448096 is 69084418.

It can be written as a sum of positive squares in only one way, i.e., 68227600 + 13220496 = 8260^2 + 3636^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1272595 + ... + 1272658.

Almost surely, 2^81448096 is an apocalyptic number.

It is an amenable number.

81448096 is a deficient number, since it is larger than the sum of its proper divisors (78902906).

81448096 is a wasteful number, since it uses less digits than its factorization.

81448096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2545263 (or 2545255 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 81448096 is about 9024.8598881091. The cubic root of 81448096 is about 433.4712639157.

The spelling of 81448096 in words is "eighty-one million, four hundred forty-eight thousand, ninety-six".