3020081 has 4 divisors (see below), whose sum is σ = 3040500. Its totient is φ = 2999664.

The previous prime is 3020077. The next prime is 3020117. The reversal of 3020081 is 1800203.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1288225 + 1731856 = 1135^2 + 1316^2 .

It is a cyclic number.

It is not a de Polignac number, because 3020081 - 2² = 3020077 is a prime.

It is a super-2 number, since 2×3020081² = 18241778493122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3020021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9986 + ... + 10283.

It is an arithmetic number, because the mean of its divisors is an integer number (760125).

Almost surely, 2^3020081 is an apocalyptic number.

It is an amenable number.

3020081 is a deficient number, since it is larger than the sum of its proper divisors (20419).

3020081 is a wasteful number, since it uses less digits than its factorization.

3020081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20418.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 3020081 is about 1737.8380246732. The cubic root of 3020081 is about 144.5460396154.

Adding to 3020081 its reverse (1800203), we get a palindrome (4820284).

The spelling of 3020081 in words is "three million, twenty thousand, eighty-one".