2194855 has 8 divisors (see below), whose sum is σ = 2836512. Its totient is φ = 1620768.

The previous prime is 2194847. The next prime is 2194879. The reversal of 2194855 is 5584912.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2194855 - 2³ = 2194847 is a prime.

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 2194855.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16819 + ... + 16948.

It is an arithmetic number, because the mean of its divisors is an integer number (354564).

2^2194855 is an apocalyptic number.

2194855 is a deficient number, since it is larger than the sum of its proper divisors (641657).

2194855 is a wasteful number, since it uses less digits than its factorization.

2194855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33785.

The product of its digits is 14400, while the sum is 34.

The square root of 2194855 is about 1481.5043030650. The cubic root of 2194855 is about 129.9576785314.

The spelling of 2194855 in words is "two million, one hundred ninety-four thousand, eight hundred fifty-five".