2083009561 has 2 divisors, whose sum is σ = 2083009562. Its totient is φ = 2083009560.

The previous prime is 2083009531. The next prime is 2083009613. The reversal of 2083009561 is 1659003802.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1207145536 + 875864025 = 34744^2 + 29595^2 .

It is a cyclic number.

It is not a de Polignac number, because 2083009561 - 2¹¹ = 2083007513 is a prime.

It is not a weakly prime, because it can be changed into another prime (2083009531) 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, 1041504780 + 1041504781.

It is an arithmetic number, because the mean of its divisors is an integer number (1041504781).

Almost surely, 2^2083009561 is an apocalyptic number.

It is an amenable number.

2083009561 is a deficient number, since it is larger than the sum of its proper divisors (1).

2083009561 is an equidigital number, since it uses as much as digits as its factorization.

2083009561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 2083009561 is about 45639.9995727432. Note that the first 3 decimals coincide. The cubic root of 2083009561 is about 1277.1162212834.

The spelling of 2083009561 in words is "two billion, eighty-three million, nine thousand, five hundred sixty-one".