2001758113 has 4 divisors (see below), whose sum is σ = 2039527188. Its totient is φ = 1963989040.

The previous prime is 2001758111. The next prime is 2001758141. The reversal of 2001758113 is 3118571002.

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 1717936704 + 283821409 = 41448^2 + 16847^2 .

It is a cyclic number.

It is not a de Polignac number, because 2001758113 - 2¹ = 2001758111 is a prime.

It is a super-2 number, since 2×2001758113² = 8014071085922641538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2001758111) 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, 18884458 + ... + 18884563.

It is an arithmetic number, because the mean of its divisors is an integer number (509881797).

Almost surely, 2^2001758113 is an apocalyptic number.

It is an amenable number.

2001758113 is a deficient number, since it is larger than the sum of its proper divisors (37769075).

2001758113 is an equidigital number, since it uses as much as digits as its factorization.

2001758113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37769074.

The product of its (nonzero) digits is 1680, while the sum is 28.

The square root of 2001758113 is about 44741.0115330443. The cubic root of 2001758113 is about 1260.2901223669.

The spelling of 2001758113 in words is "two billion, one million, seven hundred fifty-eight thousand, one hundred thirteen".