2001838193 has 4 divisors (see below), whose sum is σ = 2029260708. Its totient is φ = 1974415680.

The previous prime is 2001838177. The next prime is 2001838207. The reversal of 2001838193 is 3918381002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1285365904 + 716472289 = 35852^2 + 26767^2 .

It is a cyclic number.

It is not a de Polignac number, because 2001838193 - 2⁴ = 2001838177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2001838093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13711148 + ... + 13711293.

It is an arithmetic number, because the mean of its divisors is an integer number (507315177).

Almost surely, 2^2001838193 is an apocalyptic number.

It is an amenable number.

2001838193 is a deficient number, since it is larger than the sum of its proper divisors (27422515).

2001838193 is an equidigital number, since it uses as much as digits as its factorization.

2001838193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27422514.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 2001838193 is about 44741.9064524524. The cubic root of 2001838193 is about 1260.3069280417.

The spelling of 2001838193 in words is "two billion, one million, eight hundred thirty-eight thousand, one hundred ninety-three".