2028711133 has 4 divisors (see below), whose sum is σ = 2148047100. Its totient is φ = 1909375168.

The previous prime is 2028711107. The next prime is 2028711143. The reversal of 2028711133 is 3311178202.

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 1875496249 + 153214884 = 43307^2 + 12378^2 .

It is a cyclic number.

It is not a de Polignac number, because 2028711133 - 2⁵ = 2028711101 is a prime.

It is a super-2 number, since 2×2028711133² = 8231337722316287378, 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 (2028711143) 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, 59667958 + ... + 59667991.

It is an arithmetic number, because the mean of its divisors is an integer number (537011775).

Almost surely, 2^2028711133 is an apocalyptic number.

It is an amenable number.

2028711133 is a deficient number, since it is larger than the sum of its proper divisors (119335967).

2028711133 is a wasteful number, since it uses less digits than its factorization.

2028711133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119335966.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 2028711133 is about 45041.2159360735. The cubic root of 2028711133 is about 1265.9213882274.

Adding to 2028711133 its reverse (3311178202), we get a palindrome (5339889335).

The spelling of 2028711133 in words is "two billion, twenty-eight million, seven hundred eleven thousand, one hundred thirty-three".