2001001193 has 8 divisors (see below), whose sum is σ = 2026844040. Its totient is φ = 1975276800.

The previous prime is 2001001183. The next prime is 2001001241. The reversal of 2001001193 is 3911001002.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1221642304 + 779358889 = 34952^2 + 27917^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2001001193 - 2¹⁴ = 2000984809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2001001103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4643 + ... + 63431.

It is an arithmetic number, because the mean of its divisors is an integer number (253355505).

Almost surely, 2^2001001193 is an apocalyptic number.

It is an amenable number.

2001001193 is a deficient number, since it is larger than the sum of its proper divisors (25842847).

2001001193 is a wasteful number, since it uses less digits than its factorization.

2001001193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59227.

The product of its (nonzero) digits is 54, while the sum is 17.

The square root of 2001001193 is about 44732.5518275003. The cubic root of 2001001193 is about 1260.1312521792.

Adding to 2001001193 its reverse (3911001002), we get a palindrome (5912002195).

The spelling of 2001001193 in words is "two billion, one million, one thousand, one hundred ninety-three".