130287529 has 2 divisors, whose sum is σ = 130287530. Its totient is φ = 130287528.

The previous prime is 130287499. The next prime is 130287539. The reversal of 130287529 is 925782031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 106502400 + 23785129 = 10320^2 + 4877^2 .

It is a cyclic number.

It is not a de Polignac number, because 130287529 - 2⁵ = 130287497 is a prime.

It is not a weakly prime, because it can be changed into another prime (130287539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65143764 + 65143765.

It is an arithmetic number, because the mean of its divisors is an integer number (65143765).

Almost surely, 2^130287529 is an apocalyptic number.

It is an amenable number.

130287529 is a deficient number, since it is larger than the sum of its proper divisors (1).

130287529 is an equidigital number, since it uses as much as digits as its factorization.

130287529 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 130287529 is about 11414.3562674379. The cubic root of 130287529 is about 506.9529047336.

It can be divided in two parts, 130287 and 529, that added together give a triangular number (130816 = T₅₁₁).

The spelling of 130287529 in words is "one hundred thirty million, two hundred eighty-seven thousand, five hundred twenty-nine".