130185469 has 2 divisors, whose sum is σ = 130185470. Its totient is φ = 130185468.

The previous prime is 130185449. The next prime is 130185481. The reversal of 130185469 is 964581031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 117440569 + 12744900 = 10837^2 + 3570^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130185469 is a prime.

It is a super-2 number, since 2×130185469² = 33896512677499922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130185449) 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, 65092734 + 65092735.

It is an arithmetic number, because the mean of its divisors is an integer number (65092735).

Almost surely, 2^130185469 is an apocalyptic number.

130185469 is the 6588-th hex number.

It is an amenable number.

130185469 is a deficient number, since it is larger than the sum of its proper divisors (1).

130185469 is an equidigital number, since it uses as much as digits as its factorization.

130185469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 130185469 is about 11409.8847058154. The cubic root of 130185469 is about 506.8204972558.

The spelling of 130185469 in words is "one hundred thirty million, one hundred eighty-five thousand, four hundred sixty-nine".