130318561 has 2 divisors, whose sum is σ = 130318562. Its totient is φ = 130318560.

The previous prime is 130318553. The next prime is 130318567. The reversal of 130318561 is 165813031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 103734225 + 26584336 = 10185^2 + 5156^2 .

It is a cyclic number.

It is not a de Polignac number, because 130318561 - 2³ = 130318553 is a prime.

It is a super-2 number, since 2×130318561² = 33965854682221442, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (130318567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65159280 + 65159281.

It is an arithmetic number, because the mean of its divisors is an integer number (65159281).

Almost surely, 2^130318561 is an apocalyptic number.

It is an amenable number.

130318561 is a deficient number, since it is larger than the sum of its proper divisors (1).

130318561 is an equidigital number, since it uses as much as digits as its factorization.

130318561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 130318561 is about 11415.7155272896. The cubic root of 130318561 is about 506.9931503703.

The spelling of 130318561 in words is "one hundred thirty million, three hundred eighteen thousand, five hundred sixty-one".