81469096 has 8 divisors (see below), whose sum is σ = 152754570. Its totient is φ = 40734544.

The previous prime is 81469081. The next prime is 81469121. The reversal of 81469096 is 69096418.

It can be written as a sum of positive squares in only one way, i.e., 41602500 + 39866596 = 6450^2 + 6314^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5091811 + ... + 5091826.

Almost surely, 2^81469096 is an apocalyptic number.

It is an amenable number.

81469096 is a deficient number, since it is larger than the sum of its proper divisors (71285474).

81469096 is a wasteful number, since it uses less digits than its factorization.

81469096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10183643 (or 10183639 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 43.

The square root of 81469096 is about 9026.0232660901. The cubic root of 81469096 is about 433.5085151008.

The spelling of 81469096 in words is "eighty-one million, four hundred sixty-nine thousand, ninety-six".