2133051181 has 8 divisors (see below), whose sum is σ = 2207388600. Its totient is φ = 2058766080.

The previous prime is 2133051157. The next prime is 2133051191. The reversal of 2133051181 is 1811503312.

It can be written as a sum of positive squares in 4 ways, for example, as 357777225 + 1775273956 = 18915^2 + 42134^2 .

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 2133051181 - 2²⁷ = 1998833453 is a prime.

It is a super-2 number, since 2×2133051181² = 9099814681530989522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2133051101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81601 + ... + 104521.

It is an arithmetic number, because the mean of its divisors is an integer number (275923575).

Almost surely, 2^2133051181 is an apocalyptic number.

It is an amenable number.

2133051181 is a deficient number, since it is larger than the sum of its proper divisors (74337419).

2133051181 is a wasteful number, since it uses less digits than its factorization.

2133051181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26159.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 2133051181 is about 46184.9670455658. The cubic root of 2133051181 is about 1287.2624238297.

Adding to 2133051181 its reverse (1811503312), we get a palindrome (3944554493).

The spelling of 2133051181 in words is "two billion, one hundred thirty-three million, fifty-one thousand, one hundred eighty-one".