130547909 has 2 divisors, whose sum is σ = 130547910. Its totient is φ = 130547908.

The previous prime is 130547903. The next prime is 130547929. The reversal of 130547909 is 909745031.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117115684 + 13432225 = 10822^2 + 3665^2 .

It is a cyclic number.

It is not a de Polignac number, because 130547909 - 2²⁴ = 113770693 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130547903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65273954 + 65273955.

It is an arithmetic number, because the mean of its divisors is an integer number (65273955).

Almost surely, 2^130547909 is an apocalyptic number.

It is an amenable number.

130547909 is a deficient number, since it is larger than the sum of its proper divisors (1).

130547909 is an equidigital number, since it uses as much as digits as its factorization.

130547909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 130547909 is about 11425.7563863405. The cubic root of 130547909 is about 507.2903956187.

The spelling of 130547909 in words is "one hundred thirty million, five hundred forty-seven thousand, nine hundred nine".