2021029 has 2 divisors, whose sum is σ = 2021030. Its totient is φ = 2021028.

The previous prime is 2021017. The next prime is 2021053. The reversal of 2021029 is 9201202.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1760929 + 260100 = 1327^2 + 510^2 .

It is a cyclic number.

It is not a de Polignac number, because 2021029 - 2¹¹ = 2018981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2021009) 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, 1010514 + 1010515.

It is an arithmetic number, because the mean of its divisors is an integer number (1010515).

2^2021029 is an apocalyptic number.

It is an amenable number.

2021029 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021029 is an equidigital number, since it uses as much as digits as its factorization.

2021029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 2021029 is about 1421.6289952023. The cubic root of 2021029 is about 126.4321476275.

The spelling of 2021029 in words is "two million, twenty-one thousand, twenty-nine".