130784249 has 2 divisors, whose sum is σ = 130784250. Its totient is φ = 130784248.

The previous prime is 130784237. The next prime is 130784309. The reversal of 130784249 is 942487031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 107329600 + 23454649 = 10360^2 + 4843^2 .

It is a cyclic number.

It is not a de Polignac number, because 130784249 - 2⁸ = 130783993 is a prime.

It is not a weakly prime, because it can be changed into another prime (130784209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65392124 + 65392125.

It is an arithmetic number, because the mean of its divisors is an integer number (65392125).

Almost surely, 2^130784249 is an apocalyptic number.

It is an amenable number.

130784249 is a deficient number, since it is larger than the sum of its proper divisors (1).

130784249 is an equidigital number, since it uses as much as digits as its factorization.

130784249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 130784249 is about 11436.0941321764. The cubic root of 130784249 is about 507.5963388173.

The spelling of 130784249 in words is "one hundred thirty million, seven hundred eighty-four thousand, two hundred forty-nine".