43081223 has 2 divisors, whose sum is σ = 43081224. Its totient is φ = 43081222.

The previous prime is 43081219. The next prime is 43081253. The reversal of 43081223 is 32218034.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43081223 - 2² = 43081219 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43081253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21540611 + 21540612.

It is an arithmetic number, because the mean of its divisors is an integer number (21540612).

Almost surely, 2^43081223 is an apocalyptic number.

43081223 is a deficient number, since it is larger than the sum of its proper divisors (1).

43081223 is an equidigital number, since it uses as much as digits as its factorization.

43081223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 43081223 is about 6563.6287981573. The cubic root of 43081223 is about 350.5602537298.

Adding to 43081223 its reverse (32218034), we get a palindrome (75299257).

The spelling of 43081223 in words is "forty-three million, eighty-one thousand, two hundred twenty-three".