1001850085 has 4 divisors (see below), whose sum is σ = 1202220108. Its totient is φ = 801480064.

The previous prime is 1001850061. The next prime is 1001850097. The reversal of 1001850085 is 5800581001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5800581001 = 3701 ⋅1567301.

It can be written as a sum of positive squares in 2 ways, for example, as 588256516 + 413593569 = 24254^2 + 20337^2 .

It is a cyclic number.

It is not a de Polignac number, because 1001850085 - 2⁵ = 1001850053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 100185004 + ... + 100185013.

It is an arithmetic number, because the mean of its divisors is an integer number (300555027).

Almost surely, 2^1001850085 is an apocalyptic number.

It is an amenable number.

1001850085 is a deficient number, since it is larger than the sum of its proper divisors (200370023).

1001850085 is an equidigital number, since it uses as much as digits as its factorization.

1001850085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200370022.

The product of its (nonzero) digits is 1600, while the sum is 28.

The square root of 1001850085 is about 31652.0154966473. The cubic root of 1001850085 is about 1000.6163150777.

The spelling of 1001850085 in words is "one billion, one million, eight hundred fifty thousand, eighty-five".