2190255 has 16 divisors (see below), whose sum is σ = 3531264. Its totient is φ = 1159200.

The previous prime is 2190233. The next prime is 2190269. The reversal of 2190255 is 5520912.

It is not a de Polignac number, because 2190255 - 2⁶ = 2190191 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 1782 + ... + 2748.

It is an arithmetic number, because the mean of its divisors is an integer number (220704).

2^2190255 is an apocalyptic number.

2190255 is a deficient number, since it is larger than the sum of its proper divisors (1341009).

2190255 is a wasteful number, since it uses less digits than its factorization.

2190255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1126.

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 2190255 is about 1479.9510127028. The cubic root of 2190255 is about 129.8668261460.

The spelling of 2190255 in words is "two million, one hundred ninety thousand, two hundred fifty-five".