130204609 has 2 divisors, whose sum is σ = 130204610. Its totient is φ = 130204608.

The previous prime is 130204601. The next prime is 130204631. The reversal of 130204609 is 906402031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110313009 + 19891600 = 10503^2 + 4460^2 .

It is a cyclic number.

It is not a de Polignac number, because 130204609 - 2³ = 130204601 is a prime.

It is not a weakly prime, because it can be changed into another prime (130204601) 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, 65102304 + 65102305.

It is an arithmetic number, because the mean of its divisors is an integer number (65102305).

Almost surely, 2^130204609 is an apocalyptic number.

It is an amenable number.

130204609 is a deficient number, since it is larger than the sum of its proper divisors (1).

130204609 is an equidigital number, since it uses as much as digits as its factorization.

130204609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 130204609 is about 11410.7234214137. The cubic root of 130204609 is about 506.8453337935.

The spelling of 130204609 in words is "one hundred thirty million, two hundred four thousand, six hundred nine".