43164145 has 4 divisors (see below), whose sum is σ = 51796980. Its totient is φ = 34531312.

The previous prime is 43164137. The next prime is 43164157. The reversal of 43164145 is 54146134.

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

It can be written as a sum of positive squares in 2 ways, for example, as 9535744 + 33628401 = 3088^2 + 5799^2 .

It is a cyclic number.

It is not a de Polignac number, because 43164145 - 2³ = 43164137 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4316410 + ... + 4316419.

It is an arithmetic number, because the mean of its divisors is an integer number (12949245).

Almost surely, 2^43164145 is an apocalyptic number.

It is an amenable number.

43164145 is a deficient number, since it is larger than the sum of its proper divisors (8632835).

43164145 is an equidigital number, since it uses as much as digits as its factorization.

43164145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8632834.

The product of its digits is 5760, while the sum is 28.

The square root of 43164145 is about 6569.9425416057. The cubic root of 43164145 is about 350.7850270351.

The spelling of 43164145 in words is "forty-three million, one hundred sixty-four thousand, one hundred forty-five".