43049249 has 2 divisors, whose sum is σ = 43049250. Its totient is φ = 43049248.

The previous prime is 43049239. The next prime is 43049257. The reversal of 43049249 is 94294034.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32126224 + 10923025 = 5668^2 + 3305^2 .

It is a cyclic number.

It is not a de Polignac number, because 43049249 - 2¹² = 43045153 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (43049239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21524624 + 21524625.

It is an arithmetic number, because the mean of its divisors is an integer number (21524625).

Almost surely, 2^43049249 is an apocalyptic number.

It is an amenable number.

43049249 is a deficient number, since it is larger than the sum of its proper divisors (1).

43049249 is an equidigital number, since it uses as much as digits as its factorization.

43049249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 43049249 is about 6561.1926507305. The cubic root of 43049249 is about 350.4735060557.

The spelling of 43049249 in words is "forty-three million, forty-nine thousand, two hundred forty-nine".