130549609 has 2 divisors, whose sum is σ = 130549610. Its totient is φ = 130549608.

The previous prime is 130549553. The next prime is 130549717. The reversal of 130549609 is 906945031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 124813584 + 5736025 = 11172^2 + 2395^2 .

It is a cyclic number.

It is not a de Polignac number, because 130549609 - 2⁷ = 130549481 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (130549109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65274804 + 65274805.

It is an arithmetic number, because the mean of its divisors is an integer number (65274805).

Almost surely, 2^130549609 is an apocalyptic number.

It is an amenable number.

130549609 is a deficient number, since it is larger than the sum of its proper divisors (1).

130549609 is an equidigital number, since it uses as much as digits as its factorization.

130549609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29160, while the sum is 37.

The square root of 130549609 is about 11425.8307794226. The cubic root of 130549609 is about 507.2925975943.

The spelling of 130549609 in words is "one hundred thirty million, five hundred forty-nine thousand, six hundred nine".