2128299 has 4 divisors (see below), whose sum is σ = 2837736. Its totient is φ = 1418864.

The previous prime is 2128283. The next prime is 2128303. The reversal of 2128299 is 9928212.

It is a happy number.

2128299 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2128299 - 2⁴ = 2128283 is a prime.

It is a d-powerful number, because it can be written as 2¹² + 1 + 2¹⁴ + 8⁴ + 2²¹ + 9 + 9⁴ .

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (2128279) 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 in 3 ways as a sum of consecutive naturals, for example, 354714 + ... + 354719.

It is an arithmetic number, because the mean of its divisors is an integer number (709434).

2^2128299 is an apocalyptic number.

2128299 is a deficient number, since it is larger than the sum of its proper divisors (709437).

2128299 is an equidigital number, since it uses as much as digits as its factorization.

2128299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 709436.

The product of its digits is 5184, while the sum is 33.

The square root of 2128299 is about 1458.8690825430. The cubic root of 2128299 is about 128.6305757843.

The spelling of 2128299 in words is "two million, one hundred twenty-eight thousand, two hundred ninety-nine".