2128837 has 2 divisors, whose sum is σ = 2128838. Its totient is φ = 2128836.

The previous prime is 2128831. The next prime is 2128849. The reversal of 2128837 is 7388212.

2128837 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1779556 + 349281 = 1334^2 + 591^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2128837 is a prime.

It is a plaindrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 2128799 and 2128808.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2128831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1064418 + 1064419.

It is an arithmetic number, because the mean of its divisors is an integer number (1064419).

2^2128837 is an apocalyptic number.

It is an amenable number.

2128837 is a deficient number, since it is larger than the sum of its proper divisors (1).

2128837 is an equidigital number, since it uses as much as digits as its factorization.

2128837 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5376, while the sum is 31.

The square root of 2128837 is about 1459.0534602954. The cubic root of 2128837 is about 128.6414134563.

The spelling of 2128837 in words is "two million, one hundred twenty-eight thousand, eight hundred thirty-seven".