43124369 has 2 divisors, whose sum is σ = 43124370. Its totient is φ = 43124368.

The previous prime is 43124353. The next prime is 43124371. The reversal of 43124369 is 96342134.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42094144 + 1030225 = 6488^2 + 1015^2 .

It is a cyclic number.

It is not a de Polignac number, because 43124369 - 2⁴ = 43124353 is a prime.

It is a super-2 number, since 2×43124369² = 3719422403296322, which contains 22 as substring.

Together with 43124371, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (43124309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21562184 + 21562185.

It is an arithmetic number, because the mean of its divisors is an integer number (21562185).

Almost surely, 2^43124369 is an apocalyptic number.

It is an amenable number.

43124369 is a deficient number, since it is larger than the sum of its proper divisors (1).

43124369 is an equidigital number, since it uses as much as digits as its factorization.

43124369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 32.

The square root of 43124369 is about 6566.9147245872. The cubic root of 43124369 is about 350.6772438020.

The spelling of 43124369 in words is "forty-three million, one hundred twenty-four thousand, three hundred sixty-nine".