130447309 has 2 divisors, whose sum is σ = 130447310. Its totient is φ = 130447308.

The previous prime is 130447259. The next prime is 130447319. The reversal of 130447309 is 903744031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 89359209 + 41088100 = 9453^2 + 6410^2 .

It is a cyclic number.

It is not a de Polignac number, because 130447309 - 2⁷ = 130447181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130447319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65223654 + 65223655.

It is an arithmetic number, because the mean of its divisors is an integer number (65223655).

Almost surely, 2^130447309 is an apocalyptic number.

It is an amenable number.

130447309 is a deficient number, since it is larger than the sum of its proper divisors (1).

130447309 is an equidigital number, since it uses as much as digits as its factorization.

130447309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 130447309 is about 11421.3532035394. The cubic root of 130447309 is about 507.1600564235.

The spelling of 130447309 in words is "one hundred thirty million, four hundred forty-seven thousand, three hundred nine".