43534319 has 2 divisors, whose sum is σ = 43534320. Its totient is φ = 43534318.

The previous prime is 43534291. The next prime is 43534321. The reversal of 43534319 is 91343534.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43534319 - 2²⁰ = 42485743 is a prime.

It is a super-2 number, since 2×43534319² = 3790473861587522, which contains 22 as substring.

Together with 43534321, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43534349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21767159 + 21767160.

It is an arithmetic number, because the mean of its divisors is an integer number (21767160).

Almost surely, 2^43534319 is an apocalyptic number.

43534319 is a deficient number, since it is larger than the sum of its proper divisors (1).

43534319 is an equidigital number, since it uses as much as digits as its factorization.

43534319 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19440, while the sum is 32.

The square root of 43534319 is about 6598.0541828633. The cubic root of 43534319 is about 351.7849468734.

The spelling of 43534319 in words is "forty-three million, five hundred thirty-four thousand, three hundred nineteen".