43164049 has 2 divisors, whose sum is σ = 43164050. Its totient is φ = 43164048.

The previous prime is 43164047. The next prime is 43164053. The reversal of 43164049 is 94046134.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42667024 + 497025 = 6532^2 + 705^2 .

It is a cyclic number.

It is not a de Polignac number, because 43164049 - 2¹ = 43164047 is a prime.

Together with 43164047, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 43164049.

It is not a weakly prime, because it can be changed into another prime (43164047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21582024 + 21582025.

It is an arithmetic number, because the mean of its divisors is an integer number (21582025).

Almost surely, 2^43164049 is an apocalyptic number.

It is an amenable number.

43164049 is a deficient number, since it is larger than the sum of its proper divisors (1).

43164049 is an equidigital number, since it uses as much as digits as its factorization.

43164049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 43164049 is about 6569.9352356016. The cubic root of 43164049 is about 350.7847669783.

The spelling of 43164049 in words is "forty-three million, one hundred sixty-four thousand, forty-nine".