81060208 has 20 divisors (see below), whose sum is σ = 157599288. Its totient is φ = 40389440.

The previous prime is 81060197. The next prime is 81060247. The reversal of 81060208 is 80206018.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3958 + ... + 13333.

Almost surely, 2^81060208 is an apocalyptic number.

It is an amenable number.

81060208 is a deficient number, since it is larger than the sum of its proper divisors (76539080).

81060208 is a wasteful number, since it uses less digits than its factorization.

81060208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17592 (or 17586 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 81060208 is about 9003.3442675486. The cubic root of 81060208 is about 432.7820481983.

The spelling of 81060208 in words is "eighty-one million, sixty thousand, two hundred eight".