130288817 has 2 divisors, whose sum is σ = 130288818. Its totient is φ = 130288816.

The previous prime is 130288811. The next prime is 130288819. The reversal of 130288817 is 718882031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 125798656 + 4490161 = 11216^2 + 2119^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130288817 is a prime.

Together with 130288819, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_7393574 and since 130288817 and 7393574 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (130288811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65144408 + 65144409.

It is an arithmetic number, because the mean of its divisors is an integer number (65144409).

Almost surely, 2^130288817 is an apocalyptic number.

It is an amenable number.

130288817 is a deficient number, since it is larger than the sum of its proper divisors (1).

130288817 is an equidigital number, since it uses as much as digits as its factorization.

130288817 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21504, while the sum is 38.

The square root of 130288817 is about 11414.4126874754. The cubic root of 130288817 is about 506.9545752777.

The spelling of 130288817 in words is "one hundred thirty million, two hundred eighty-eight thousand, eight hundred seventeen".