2086001243 has 4 divisors (see below), whose sum is σ = 2086879728. Its totient is φ = 2085122760.

The previous prime is 2086001221. The next prime is 2086001263. The reversal of 2086001243 is 3421006802.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3421006802 = 2 ⋅1710503401.

It is a cyclic number.

It is not a de Polignac number, because 2086001243 - 2⁶ = 2086001179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2086001213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 435671 + ... + 440432.

It is an arithmetic number, because the mean of its divisors is an integer number (521719932).

Almost surely, 2^2086001243 is an apocalyptic number.

2086001243 is a deficient number, since it is larger than the sum of its proper divisors (878485).

2086001243 is an equidigital number, since it uses as much as digits as its factorization.

2086001243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878484.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 2086001243 is about 45672.7625943516. The cubic root of 2086001243 is about 1277.7273399252.

The spelling of 2086001243 in words is "two billion, eighty-six million, one thousand, two hundred forty-three".