81060568 has 16 divisors (see below), whose sum is σ = 157230000. Its totient is φ = 39132576.

The previous prime is 81060527. The next prime is 81060569. The reversal of 81060568 is 86506018.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81060569) 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, 174468 + ... + 174931.

It is an arithmetic number, because the mean of its divisors is an integer number (9826875).

Almost surely, 2^81060568 is an apocalyptic number.

It is an amenable number.

81060568 is a deficient number, since it is larger than the sum of its proper divisors (76169432).

81060568 is a wasteful number, since it uses less digits than its factorization.

81060568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349434 (or 349430 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 81060568 is about 9003.3642600974. The cubic root of 81060568 is about 432.7826888798.

The spelling of 81060568 in words is "eighty-one million, sixty thousand, five hundred sixty-eight".