43130249 has 2 divisors, whose sum is σ = 43130250. Its totient is φ = 43130248.

The previous prime is 43130231. The next prime is 43130251. The reversal of 43130249 is 94203134.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30880249 + 12250000 = 5557^2 + 3500^2 .

It is a cyclic number.

It is not a de Polignac number, because 43130249 - 2¹⁶ = 43064713 is a prime.

Together with 43130251, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (43130149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21565124 + 21565125.

It is an arithmetic number, because the mean of its divisors is an integer number (21565125).

Almost surely, 2^43130249 is an apocalyptic number.

It is an amenable number.

43130249 is a deficient number, since it is larger than the sum of its proper divisors (1).

43130249 is an equidigital number, since it uses as much as digits as its factorization.

43130249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 43130249 is about 6567.3624081514. The cubic root of 43130249 is about 350.6931813375.

The spelling of 43130249 in words is "forty-three million, one hundred thirty thousand, two hundred forty-nine".