2001136 has 20 divisors (see below), whose sum is σ = 3904264. Its totient is φ = 993600.

The previous prime is 2001127. The next prime is 2001163. The reversal of 2001136 is 6311002.

It is a super-3 number, since 3×2001136³ = 24040919233326010368, which contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2551 + ... + 3241.

2^2001136 is an apocalyptic number.

It is an amenable number.

2001136 is a deficient number, since it is larger than the sum of its proper divisors (1903128).

2001136 is a wasteful number, since it uses less digits than its factorization.

2001136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880 (or 874 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 2001136 is about 1414.6151420086. The cubic root of 2001136 is about 126.0159549797.

Adding to 2001136 its reverse (6311002), we get a palindrome (8312138).

The spelling of 2001136 in words is "two million, one thousand, one hundred thirty-six".