43118849 has 2 divisors, whose sum is σ = 43118850. Its totient is φ = 43118848.

The previous prime is 43118791. The next prime is 43118857. The reversal of 43118849 is 94881134.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37736449 + 5382400 = 6143^2 + 2320^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43118849 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (43118869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21559424 + 21559425.

It is an arithmetic number, because the mean of its divisors is an integer number (21559425).

Almost surely, 2^43118849 is an apocalyptic number.

It is an amenable number.

43118849 is a deficient number, since it is larger than the sum of its proper divisors (1).

43118849 is an equidigital number, since it uses as much as digits as its factorization.

43118849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27648, while the sum is 38.

The square root of 43118849 is about 6566.4944224449. The cubic root of 43118849 is about 350.6622807156.

The spelling of 43118849 in words is "forty-three million, one hundred eighteen thousand, eight hundred forty-nine".