2185955 has 4 divisors (see below), whose sum is σ = 2623152. Its totient is φ = 1748760.

The previous prime is 2185949. The next prime is 2185973. The reversal of 2185955 is 5595812.

2185955 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 2185955 - 2⁸ = 2185699 is a prime.

It is a Duffinian number.

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, 218591 + ... + 218600.

It is an arithmetic number, because the mean of its divisors is an integer number (655788).

2^2185955 is an apocalyptic number.

2185955 is a deficient number, since it is larger than the sum of its proper divisors (437197).

2185955 is an equidigital number, since it uses as much as digits as its factorization.

2185955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437196.

The product of its digits is 18000, while the sum is 35.

The square root of 2185955 is about 1478.4975481887. The cubic root of 2185955 is about 129.7817838117.

The spelling of 2185955 in words is "two million, one hundred eighty-five thousand, nine hundred fifty-five".