2001136450 has 24 divisors (see below), whose sum is σ = 3756271860. Its totient is φ = 793108800.

The previous prime is 2001136447. The next prime is 2001136471. The reversal of 2001136450 is 546311002.

It can be written as a sum of positive squares in 6 ways, for example, as 1558749361 + 442387089 = 39481^2 + 21033^2 .

It is a super-3 number, since 3×2001136450³ (a number of 29 digits) contains 333 as substring.

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 11 ways as a sum of consecutive naturals, for example, 178141 + ... + 189040.

Almost surely, 2^2001136450 is an apocalyptic number.

2001136450 is a deficient number, since it is larger than the sum of its proper divisors (1755135410).

2001136450 is a wasteful number, since it uses less digits than its factorization.

2001136450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367302 (or 367297 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 2001136450 is about 44734.0636428215. The cubic root of 2001136450 is about 1260.1596442550.

Adding to 2001136450 its reverse (546311002), we get a palindrome (2547447452).

The spelling of 2001136450 in words is "two billion, one million, one hundred thirty-six thousand, four hundred fifty".