130780217 has 2 divisors, whose sum is σ = 130780218. Its totient is φ = 130780216.

The previous prime is 130780193. The next prime is 130780229. The reversal of 130780217 is 712087031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 117267241 + 13512976 = 10829^2 + 3676^2 .

It is an emirp because it is prime and its reverse (712087031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 130780217 - 2¹⁰ = 130779193 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 130780217.

It is not a weakly prime, because it can be changed into another prime (130780267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65390108 + 65390109.

It is an arithmetic number, because the mean of its divisors is an integer number (65390109).

Almost surely, 2^130780217 is an apocalyptic number.

It is an amenable number.

130780217 is a deficient number, since it is larger than the sum of its proper divisors (1).

130780217 is an equidigital number, since it uses as much as digits as its factorization.

130780217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2352, while the sum is 29.

The square root of 130780217 is about 11435.9178468543. The cubic root of 130780217 is about 507.5911224667.

The spelling of 130780217 in words is "one hundred thirty million, seven hundred eighty thousand, two hundred seventeen".