1081850849 has 2 divisors, whose sum is σ = 1081850850. Its totient is φ = 1081850848.

The previous prime is 1081850837. The next prime is 1081850863. The reversal of 1081850849 is 9480581801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 941262400 + 140588449 = 30680^2 + 11857^2 .

It is a cyclic number.

It is not a de Polignac number, because 1081850849 - 2⁸ = 1081850593 is a prime.

It is not a weakly prime, because it can be changed into another prime (1021850849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 540925424 + 540925425.

It is an arithmetic number, because the mean of its divisors is an integer number (540925425).

Almost surely, 2^1081850849 is an apocalyptic number.

It is an amenable number.

1081850849 is a deficient number, since it is larger than the sum of its proper divisors (1).

1081850849 is an equidigital number, since it uses as much as digits as its factorization.

1081850849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 92160, while the sum is 44.

The square root of 1081850849 is about 32891.5011667148. The cubic root of 1081850849 is about 1026.5713274575.

The spelling of 1081850849 in words is "one billion, eighty-one million, eight hundred fifty thousand, eight hundred forty-nine".