1854223 has 4 divisors (see below), whose sum is σ = 2119120. Its totient is φ = 1589328.

The previous prime is 1854221. The next prime is 1854227. The reversal of 1854223 is 3224581.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1854223 - 2¹ = 1854221 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 (1854221) 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 3 ways as a sum of consecutive naturals, for example, 132438 + ... + 132451.

It is an arithmetic number, because the mean of its divisors is an integer number (529780).

2^1854223 is an apocalyptic number.

1854223 is a deficient number, since it is larger than the sum of its proper divisors (264897).

1854223 is an equidigital number, since it uses as much as digits as its factorization.

1854223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264896.

The product of its digits is 1920, while the sum is 25.

The square root of 1854223 is about 1361.6985716376. The cubic root of 1854223 is about 122.8534399075.

The spelling of 1854223 in words is "one million, eight hundred fifty-four thousand, two hundred twenty-three".