43144223 has 4 divisors (see below), whose sum is σ = 43258440. Its totient is φ = 43030008.

The previous prime is 43144217. The next prime is 43144229. The reversal of 43144223 is 32244134.

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

It is an interprime number because it is at equal distance from previous prime (43144217) and next prime (43144229).

It is a cyclic number.

It is not a de Polignac number, because 43144223 - 2¹⁸ = 42882079 is a prime.

It is a super-2 number, since 2×43144223² = 3722847956547458, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43144229) 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, 56540 + ... + 57297.

It is an arithmetic number, because the mean of its divisors is an integer number (10814610).

Almost surely, 2^43144223 is an apocalyptic number.

43144223 is a deficient number, since it is larger than the sum of its proper divisors (114217).

43144223 is a wasteful number, since it uses less digits than its factorization.

43144223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114216.

The product of its digits is 2304, while the sum is 23.

The square root of 43144223 is about 6568.4262194227. The cubic root of 43144223 is about 350.7310515676.

Adding to 43144223 its reverse (32244134), we get a palindrome (75388357).

The spelling of 43144223 in words is "forty-three million, one hundred forty-four thousand, two hundred twenty-three".