43161427 has 4 divisors (see below), whose sum is σ = 43355200. Its totient is φ = 42967656.

The previous prime is 43161401. The next prime is 43161431. The reversal of 43161427 is 72416134.

43161427 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 43161427 - 2²³ = 34772819 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 43161395 and 43161404.

It is not an unprimeable number, because it can be changed into a prime (43161457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96552 + ... + 96997.

It is an arithmetic number, because the mean of its divisors is an integer number (10838800).

Almost surely, 2^43161427 is an apocalyptic number.

43161427 is a deficient number, since it is larger than the sum of its proper divisors (193773).

43161427 is a wasteful number, since it uses less digits than its factorization.

43161427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193772.

The product of its digits is 4032, while the sum is 28.

The square root of 43161427 is about 6569.7356872252. The cubic root of 43161427 is about 350.7776640280. Note that the first 3 decimals are identical.

The spelling of 43161427 in words is "forty-three million, one hundred sixty-one thousand, four hundred twenty-seven".