2021134133 has 4 divisors (see below), whose sum is σ = 2021282700. Its totient is φ = 2020985568.

The previous prime is 2021134123. The next prime is 2021134163. The reversal of 2021134133 is 3314311202.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1241998564 + 779135569 = 35242^2 + 27913^2 .

It is a cyclic number.

It is not a de Polignac number, because 2021134133 - 2¹⁶ = 2021068597 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021134123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51560 + ... + 81857.

It is an arithmetic number, because the mean of its divisors is an integer number (505320675).

Almost surely, 2^2021134133 is an apocalyptic number.

It is an amenable number.

2021134133 is a deficient number, since it is larger than the sum of its proper divisors (148567).

2021134133 is a wasteful number, since it uses less digits than its factorization.

2021134133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148566.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 2021134133 is about 44957.0254020437. The cubic root of 2021134133 is about 1264.3433990354.

Adding to 2021134133 its reverse (3314311202), we get a palindrome (5335445335).

The spelling of 2021134133 in words is "two billion, twenty-one million, one hundred thirty-four thousand, one hundred thirty-three".