2190755 has 16 divisors (see below), whose sum is σ = 3063744. Its totient is φ = 1472640.

The previous prime is 2190751. The next prime is 2190763. The reversal of 2190755 is 5570912.

2190755 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 2190755 - 2² = 2190751 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2190751) 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 15 ways as a sum of consecutive naturals, for example, 1265 + ... + 2445.

It is an arithmetic number, because the mean of its divisors is an integer number (191484).

2^2190755 is an apocalyptic number.

2190755 is a deficient number, since it is larger than the sum of its proper divisors (872989).

2190755 is a wasteful number, since it uses less digits than its factorization.

2190755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1246.

The product of its (nonzero) digits is 3150, while the sum is 29.

The square root of 2190755 is about 1480.1199275734. The cubic root of 2190755 is about 129.8767075636.

The spelling of 2190755 in words is "two million, one hundred ninety thousand, seven hundred fifty-five".