2021132089 has 2 divisors, whose sum is σ = 2021132090. Its totient is φ = 2021132088.

The previous prime is 2021132081. The next prime is 2021132101. The reversal of 2021132089 is 9802311202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1215707689 + 805424400 = 34867^2 + 28380^2 .

It is a cyclic number.

It is not a de Polignac number, because 2021132089 - 2³ = 2021132081 is a prime.

It is not a weakly prime, because it can be changed into another prime (2021132081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010566044 + 1010566045.

It is an arithmetic number, because the mean of its divisors is an integer number (1010566045).

Almost surely, 2^2021132089 is an apocalyptic number.

It is an amenable number.

2021132089 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021132089 is an equidigital number, since it uses as much as digits as its factorization.

2021132089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 2021132089 is about 44957.0026692172. The cubic root of 2021132089 is about 1264.3429728195.

The spelling of 2021132089 in words is "two billion, twenty-one million, one hundred thirty-two thousand, eighty-nine".