3600081 has 6 divisors (see below), whose sum is σ = 5200130. Its totient is φ = 2400048.

The previous prime is 3600053. The next prime is 3600097. The reversal of 3600081 is 1800063.

It can be written as a sum of positive squares in only one way, i.e., 3549456 + 50625 = 1884^2 + 225^2 .

It is not a de Polignac number, because 3600081 - 2⁶ = 3600017 is a prime.

It is a super-2 number, since 2×3600081² = 25921166413122, which contains 22 as substring.

It is a Duffinian number.

3600081 is a modest number, since divided by 81 gives 36 as remainder.

It is not an unprimeable number, because it can be changed into a prime (3600001) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 199996 + ... + 200013.

Almost surely, 2^3600081 is an apocalyptic number.

It is an amenable number.

3600081 is a deficient number, since it is larger than the sum of its proper divisors (1600049).

3600081 is a wasteful number, since it uses less digits than its factorization.

3600081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400015 (or 400012 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 3600081 is about 1897.3879413552. The cubic root of 3600081 is about 153.2630359342.

Subtracting from 3600081 its sum of digits (18), we obtain a palindrome (3600063).

The spelling of 3600081 in words is "three million, six hundred thousand, eighty-one".