3061021 has 2 divisors, whose sum is σ = 3061022. Its totient is φ = 3061020.

The previous prime is 3060997. The next prime is 3061027. The reversal of 3061021 is 1201603.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2992900 + 68121 = 1730^2 + 261^2 .

It is a cyclic number.

It is not a de Polignac number, because 3061021 - 2⁵ = 3060989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3060992 and 3061010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3061027) 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 as a sum of consecutive naturals, namely, 1530510 + 1530511.

It is an arithmetic number, because the mean of its divisors is an integer number (1530511).

Almost surely, 2^3061021 is an apocalyptic number.

It is an amenable number.

3061021 is a deficient number, since it is larger than the sum of its proper divisors (1).

3061021 is an equidigital number, since it uses as much as digits as its factorization.

3061021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 3061021 is about 1749.5773775401. The cubic root of 3061021 is about 145.1962621759.

Adding to 3061021 its reverse (1201603), we get a palindrome (4262624).

The spelling of 3061021 in words is "three million, sixty-one thousand, twenty-one".