43478159 has 2 divisors, whose sum is σ = 43478160. Its totient is φ = 43478158.

The previous prime is 43478153. The next prime is 43478161. The reversal of 43478159 is 95187434.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43478159 is a prime.

Together with 43478161, 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 (43478153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21739079 + 21739080.

It is an arithmetic number, because the mean of its divisors is an integer number (21739080).

Almost surely, 2^43478159 is an apocalyptic number.

43478159 is a deficient number, since it is larger than the sum of its proper divisors (1).

43478159 is an equidigital number, since it uses as much as digits as its factorization.

43478159 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 41.

The square root of 43478159 is about 6593.7970093111. The cubic root of 43478159 is about 351.6336122907.

The spelling of 43478159 in words is "forty-three million, four hundred seventy-eight thousand, one hundred fifty-nine".