2189375 has 20 divisors (see below), whose sum is σ = 2849088. Its totient is φ = 1680000.

The previous prime is 2189371. The next prime is 2189381. The reversal of 2189375 is 5739812.

2189375 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2189375 - 2² = 2189371 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2189371) 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 19 ways as a sum of consecutive naturals, for example, 19319 + ... + 19431.

2^2189375 is an apocalyptic number.

2189375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2189375 is a deficient number, since it is larger than the sum of its proper divisors (659713).

2189375 is an equidigital number, since it uses as much as digits as its factorization.

2189375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164 (or 149 counting only the distinct ones).

The product of its digits is 15120, while the sum is 35.

The square root of 2189375 is about 1479.6536756958. The cubic root of 2189375 is about 129.8494311980.

The spelling of 2189375 in words is "two million, one hundred eighty-nine thousand, three hundred seventy-five".