43049 has 2 divisors, whose sum is σ = 43050. Its totient is φ = 43048.

The previous prime is 43037. The next prime is 43051. The reversal of 43049 is 94034.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42025 + 1024 = 205^2 + 32^2 .

It is a cyclic number.

It is not a de Polignac number, because 43049 - 2⁸ = 42793 is a prime.

Together with 43051, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 43049.

It is not a weakly prime, because it can be changed into another prime (43019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21524 + 21525.

It is an arithmetic number, because the mean of its divisors is an integer number (21525).

2⁴³⁰⁴⁹ is an apocalyptic number.

It is an amenable number.

43049 is a deficient number, since it is larger than the sum of its proper divisors (1).

43049 is an equidigital number, since it uses as much as digits as its factorization.

43049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 43049 is about 207.4825293850. The cubic root of 43049 is about 35.0472830333.

The spelling of 43049 in words is "forty-three thousand, forty-nine".