43009159 has 4 divisors (see below), whose sum is σ = 44009416. Its totient is φ = 42008904.

The previous prime is 43009151. The next prime is 43009223. The reversal of 43009159 is 95190034.

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

It is a cyclic number.

It is not a de Polignac number, because 43009159 - 2³ = 43009151 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 43009159.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43009151) 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, 500064 + ... + 500149.

It is an arithmetic number, because the mean of its divisors is an integer number (11002354).

Almost surely, 2^43009159 is an apocalyptic number.

43009159 is a deficient number, since it is larger than the sum of its proper divisors (1000257).

43009159 is a wasteful number, since it uses less digits than its factorization.

43009159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000256.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 43009159 is about 6558.1368543207. The cubic root of 43009159 is about 350.3646783990.

The spelling of 43009159 in words is "forty-three million, nine thousand, one hundred fifty-nine".