130304081 has 2 divisors, whose sum is σ = 130304082. Its totient is φ = 130304080.

The previous prime is 130304063. The next prime is 130304087. The reversal of 130304081 is 180403031.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120121600 + 10182481 = 10960^2 + 3191^2 .

It is a cyclic number.

It is not a de Polignac number, because 130304081 - 2⁶ = 130304017 is a prime.

It is a super-2 number, since 2×130304081² = 33958307050509122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (130304087) 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, 65152040 + 65152041.

It is an arithmetic number, because the mean of its divisors is an integer number (65152041).

Almost surely, 2^130304081 is an apocalyptic number.

It is an amenable number.

130304081 is a deficient number, since it is larger than the sum of its proper divisors (1).

130304081 is an equidigital number, since it uses as much as digits as its factorization.

130304081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 130304081 is about 11415.0812962501. The cubic root of 130304081 is about 506.9743719434.

The spelling of 130304081 in words is "one hundred thirty million, three hundred four thousand, eighty-one".