2001010194 has 48 divisors (see below), whose sum is σ = 4832174880. Its totient is φ = 594725760.

The previous prime is 2001010169. The next prime is 2001010247. The reversal of 2001010194 is 4910101002.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 23 ways as a sum of consecutive naturals, for example, 166272 + ... + 177899.

It is an arithmetic number, because the mean of its divisors is an integer number (100670310).

Almost surely, 2^2001010194 is an apocalyptic number.

2001010194 is an abundant number, since it is smaller than the sum of its proper divisors (2831164686).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2001010194 is a wasteful number, since it uses less digits than its factorization.

2001010194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344215 (or 344212 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 2001010194 is about 44732.6524364474. The cubic root of 2001010194 is about 1260.1331416374.

Adding to 2001010194 its reverse (4910101002), we get a palindrome (6911111196).

The spelling of 2001010194 in words is "two billion, one million, ten thousand, one hundred ninety-four".