2191235 has 16 divisors (see below), whose sum is σ = 2767872. Its totient is φ = 1663200.

The previous prime is 2191229. The next prime is 2191243. The reversal of 2191235 is 5321912.

2191235 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 2191235 - 2⁶ = 2191171 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 2191235.

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 15 ways as a sum of consecutive naturals, for example, 10280 + ... + 10490.

It is an arithmetic number, because the mean of its divisors is an integer number (172992).

2^2191235 is an apocalyptic number.

2191235 is a deficient number, since it is larger than the sum of its proper divisors (576637).

2191235 is a wasteful number, since it uses less digits than its factorization.

2191235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314.

The product of its digits is 540, while the sum is 23.

The square root of 2191235 is about 1480.2820677155. The cubic root of 2191235 is about 129.8861923101.

The spelling of 2191235 in words is "two million, one hundred ninety-one thousand, two hundred thirty-five".