2188955 has 8 divisors (see below), whose sum is σ = 2656800. Its totient is φ = 1731136.

The previous prime is 2188919. The next prime is 2188981. The reversal of 2188955 is 5598812.

2188955 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2188955 - 2¹² = 2184859 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 2015 + ... + 2904.

It is an arithmetic number, because the mean of its divisors is an integer number (332100).

2^2188955 is an apocalyptic number.

2188955 is a deficient number, since it is larger than the sum of its proper divisors (467845).

2188955 is an equidigital number, since it uses as much as digits as its factorization.

2188955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5013.

The product of its digits is 28800, while the sum is 38.

The square root of 2188955 is about 1479.5117437858. The cubic root of 2188955 is about 129.8411274204.

The spelling of 2188955 in words is "two million, one hundred eighty-eight thousand, nine hundred fifty-five".