1085535851 has 2 divisors, whose sum is σ = 1085535852. Its totient is φ = 1085535850.

The previous prime is 1085535839. The next prime is 1085535881. The reversal of 1085535851 is 1585355801.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1085535851 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 1085535799 and 1085535808.

It is not a weakly prime, because it can be changed into another prime (1085535821) 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, 542767925 + 542767926.

It is an arithmetic number, because the mean of its divisors is an integer number (542767926).

Almost surely, 2^1085535851 is an apocalyptic number.

1085535851 is a deficient number, since it is larger than the sum of its proper divisors (1).

1085535851 is an equidigital number, since it uses as much as digits as its factorization.

1085535851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120000, while the sum is 41.

The square root of 1085535851 is about 32947.4710865644. The cubic root of 1085535851 is about 1027.7355761711.

The spelling of 1085535851 in words is "one billion, eighty-five million, five hundred thirty-five thousand, eight hundred fifty-one".