4223181 has 4 divisors (see below), whose sum is σ = 5630912. Its totient is φ = 2815452.

The previous prime is 4223179. The next prime is 4223189. The reversal of 4223181 is 1813224.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 4223181 - 2¹ = 4223179 is a prime.

It is a super-2 number, since 2×4223181² = 35670515517522, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4223189) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 703861 + ... + 703866.

It is an arithmetic number, because the mean of its divisors is an integer number (1407728).

Almost surely, 2^4223181 is an apocalyptic number.

It is an amenable number.

4223181 is a deficient number, since it is larger than the sum of its proper divisors (1407731).

4223181 is a wasteful number, since it uses less digits than its factorization.

4223181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1407730.

The product of its digits is 384, while the sum is 21.

The square root of 4223181 is about 2055.0379558539. The cubic root of 4223181 is about 161.6391526257.

The spelling of 4223181 in words is "four million, two hundred twenty-three thousand, one hundred eighty-one".