2143355 has 4 divisors (see below), whose sum is σ = 2572032. Its totient is φ = 1714680.

The previous prime is 2143331. The next prime is 2143369. The reversal of 2143355 is 5533412.

2143355 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 not a de Polignac number, because 2143355 - 2¹⁸ = 1881211 is a prime.

It is a super-3 number, since 3×2143355³ = 29539529926333391625, which contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2143355.

It is an unprimeable number.

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, 214331 + ... + 214340.

It is an arithmetic number, because the mean of its divisors is an integer number (643008).

2^2143355 is an apocalyptic number.

2143355 is a deficient number, since it is larger than the sum of its proper divisors (428677).

2143355 is an equidigital number, since it uses as much as digits as its factorization.

2143355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428676.

The product of its digits is 1800, while the sum is 23.

The square root of 2143355 is about 1464.0201501346. The cubic root of 2143355 is about 128.9331825513.

Adding to 2143355 its reverse (5533412), we get a palindrome (7676767).

The spelling of 2143355 in words is "two million, one hundred forty-three thousand, three hundred fifty-five".