2021001841 has 2 divisors, whose sum is σ = 2021001842. Its totient is φ = 2021001840.

The previous prime is 2021001713. The next prime is 2021001859. The reversal of 2021001841 is 1481001202.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1115292816 + 905709025 = 33396^2 + 30095^2 .

It is a cyclic number.

It is not a de Polignac number, because 2021001841 - 2⁷ = 2021001713 is a prime.

It is not a weakly prime, because it can be changed into another prime (2021001041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010500920 + 1010500921.

It is an arithmetic number, because the mean of its divisors is an integer number (1010500921).

Almost surely, 2^2021001841 is an apocalyptic number.

It is an amenable number.

2021001841 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021001841 is an equidigital number, since it uses as much as digits as its factorization.

2021001841 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 2021001841 is about 44955.5540617619. The cubic root of 2021001841 is about 1264.3158128461.

The spelling of 2021001841 in words is "two billion, twenty-one million, one thousand, eight hundred forty-one".