2149223 has 4 divisors (see below), whose sum is σ = 2262360. Its totient is φ = 2036088.

The previous prime is 2149211. The next prime is 2149237. The reversal of 2149223 is 3229412.

2149223 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.

It is a cyclic number.

It is not a de Polignac number, because 2149223 - 2⁴ = 2149207 is a prime.

It is a d-powerful number, because it can be written as 2 + 1 + 4⁷ + 9³ + 2¹⁵ + 2²¹ + 3⁷ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2149283) 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, 56540 + ... + 56577.

It is an arithmetic number, because the mean of its divisors is an integer number (565590).

2^2149223 is an apocalyptic number.

2149223 is a deficient number, since it is larger than the sum of its proper divisors (113137).

2149223 is a wasteful number, since it uses less digits than its factorization.

2149223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113136.

The product of its digits is 864, while the sum is 23.

The square root of 2149223 is about 1466.0228511179. The cubic root of 2149223 is about 129.0507382086.

The spelling of 2149223 in words is "two million, one hundred forty-nine thousand, two hundred twenty-three".