3106021 has 2 divisors, whose sum is σ = 3106022. Its totient is φ = 3106020.

The previous prime is 3106013. The next prime is 3106027. The reversal of 3106021 is 1206013.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3101121 + 4900 = 1761^2 + 70^2 .

It is an emirp because it is prime and its reverse (1206013) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3106021 - 2³ = 3106013 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 3105992 and 3106010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3106027) 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, 1553010 + 1553011.

It is an arithmetic number, because the mean of its divisors is an integer number (1553011).

Almost surely, 2^3106021 is an apocalyptic number.

It is an amenable number.

3106021 is a deficient number, since it is larger than the sum of its proper divisors (1).

3106021 is an equidigital number, since it uses as much as digits as its factorization.

3106021 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 3106021 is about 1762.3907058311. The cubic root of 3106021 is about 145.9043127310.

The spelling of 3106021 in words is "three million, one hundred six thousand, twenty-one".