1085212159 has 2 divisors, whose sum is σ = 1085212160. Its totient is φ = 1085212158.

The previous prime is 1085212129. The next prime is 1085212169. The reversal of 1085212159 is 9512125801.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1085212159 - 2¹⁷ = 1085081087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1085212129) 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, 542606079 + 542606080.

It is an arithmetic number, because the mean of its divisors is an integer number (542606080).

Almost surely, 2^1085212159 is an apocalyptic number.

1085212159 is a deficient number, since it is larger than the sum of its proper divisors (1).

1085212159 is an equidigital number, since it uses as much as digits as its factorization.

1085212159 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7200, while the sum is 34.

The square root of 1085212159 is about 32942.5584768397. The cubic root of 1085212159 is about 1027.6334137675.

The spelling of 1085212159 in words is "one billion, eighty-five million, two hundred twelve thousand, one hundred fifty-nine".