2223131 has 4 divisors (see below), whose sum is σ = 2248200. Its totient is φ = 2198064.

The previous prime is 2223119. The next prime is 2223149. The reversal of 2223131 is 1313222.

It is a happy number.

2223131 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 2223131 - 2¹⁴ = 2206747 is a prime.

It is a super-2 number, since 2×2223131² = 9884622886322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2223101) 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, 12401 + ... + 12578.

It is an arithmetic number, because the mean of its divisors is an integer number (562050).

2^2223131 is an apocalyptic number.

2223131 is a deficient number, since it is larger than the sum of its proper divisors (25069).

2223131 is an equidigital number, since it uses as much as digits as its factorization.

2223131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25068.

The product of its digits is 72, while the sum is 14.

The square root of 2223131 is about 1491.0167671760. The cubic root of 2223131 is about 130.5133743382.

Adding to 2223131 its reverse (1313222), we get a palindrome (3536353).

Subtracting from 2223131 its reverse (1313222), we obtain a palindrome (909909).

The spelling of 2223131 in words is "two million, two hundred twenty-three thousand, one hundred thirty-one".