2021133529 has 2 divisors, whose sum is σ = 2021133530. Its totient is φ = 2021133528.

The previous prime is 2021133497. The next prime is 2021133563. The reversal of 2021133529 is 9253311202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1609855129 + 411278400 = 40123^2 + 20280^2 .

It is a cyclic number.

It is not a de Polignac number, because 2021133529 - 2⁵ = 2021133497 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2021133497 and 2021133506.

It is not a weakly prime, because it can be changed into another prime (2021133589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010566764 + 1010566765.

It is an arithmetic number, because the mean of its divisors is an integer number (1010566765).

Almost surely, 2^2021133529 is an apocalyptic number.

It is an amenable number.

2021133529 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021133529 is an equidigital number, since it uses as much as digits as its factorization.

2021133529 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 2021133529 is about 44957.0186845169. The cubic root of 2021133529 is about 1264.3432730891.

The spelling of 2021133529 in words is "two billion, twenty-one million, one hundred thirty-three thousand, five hundred twenty-nine".