130257529 has 2 divisors, whose sum is σ = 130257530. Its totient is φ = 130257528.

The previous prime is 130257527. The next prime is 130257541. The reversal of 130257529 is 925752031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 113635600 + 16621929 = 10660^2 + 4077^2 .

It is a cyclic number.

It is not a de Polignac number, because 130257529 - 2¹ = 130257527 is a prime.

It is a super-2 number, since 2×130257529² = 33934047722371682, which contains 22 as substring.

Together with 130257527, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 130257494 and 130257503.

It is not a weakly prime, because it can be changed into another prime (130257527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65128764 + 65128765.

It is an arithmetic number, because the mean of its divisors is an integer number (65128765).

Almost surely, 2^130257529 is an apocalyptic number.

It is an amenable number.

130257529 is a deficient number, since it is larger than the sum of its proper divisors (1).

130257529 is an equidigital number, since it uses as much as digits as its factorization.

130257529 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18900, while the sum is 34.

The square root of 130257529 is about 11413.0420572256. The cubic root of 130257529 is about 506.9139914298.

The spelling of 130257529 in words is "one hundred thirty million, two hundred fifty-seven thousand, five hundred twenty-nine".