6109021 has 2 divisors, whose sum is σ = 6109022. Its totient is φ = 6109020.

The previous prime is 6109009. The next prime is 6109031. The reversal of 6109021 is 1209016.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5692996 + 416025 = 2386^2 + 645^2 .

It is a cyclic number.

It is not a de Polignac number, because 6109021 - 2⁵ = 6108989 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6109021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6109031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3054510 + 3054511.

It is an arithmetic number, because the mean of its divisors is an integer number (3054511).

Almost surely, 2^6109021 is an apocalyptic number.

It is an amenable number.

6109021 is a deficient number, since it is larger than the sum of its proper divisors (1).

6109021 is an equidigital number, since it uses as much as digits as its factorization.

6109021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 6109021 is about 2471.6433804253. The cubic root of 6109021 is about 182.8060393314.

The spelling of 6109021 in words is "six million, one hundred nine thousand, twenty-one".