2231995 has 4 divisors (see below), whose sum is σ = 2678400. Its totient is φ = 1785592.

The previous prime is 2231941. The next prime is 2232017. The reversal of 2231995 is 5991322.

2231995 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5991322 = 2 ⋅2995661.

It is a cyclic number.

It is not a de Polignac number, because 2231995 - 2¹⁹ = 1707707 is a prime.

It is a super-3 number, since 3×2231995³ = 33358069322422199625, which contains 333 as substring.

It is a d-powerful number, because it can be written as 2¹⁷ + 2²¹ + 3⁷ + 1 + 9³ + 9³ + 5³ .

2231995 is a lucky number.

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 3 ways as a sum of consecutive naturals, for example, 223195 + ... + 223204.

It is an arithmetic number, because the mean of its divisors is an integer number (669600).

2^2231995 is an apocalyptic number.

2231995 is a deficient number, since it is larger than the sum of its proper divisors (446405).

2231995 is an equidigital number, since it uses as much as digits as its factorization.

2231995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446404.

The product of its digits is 4860, while the sum is 31.

The square root of 2231995 is about 1493.9862783841. The cubic root of 2231995 is about 130.6866039560.

The spelling of 2231995 in words is "two million, two hundred thirty-one thousand, nine hundred ninety-five".