130309997 has 2 divisors, whose sum is σ = 130309998. Its totient is φ = 130309996.

The previous prime is 130309979. The next prime is 130310003. The reversal of 130309997 is 799903031.

Together with previous prime (130309979) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 91795561 + 38514436 = 9581^2 + 6206^2 .

It is a cyclic number.

It is not a de Polignac number, because 130309997 - 2⁸ = 130309741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130309297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65154998 + 65154999.

It is an arithmetic number, because the mean of its divisors is an integer number (65154999).

Almost surely, 2^130309997 is an apocalyptic number.

It is an amenable number.

130309997 is a deficient number, since it is larger than the sum of its proper divisors (1).

130309997 is an equidigital number, since it uses as much as digits as its factorization.

130309997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45927, while the sum is 41.

The square root of 130309997 is about 11415.3404241836. The cubic root of 130309997 is about 506.9820442920.

The spelling of 130309997 in words is "one hundred thirty million, three hundred nine thousand, nine hundred ninety-seven".