130686025 has 6 divisors (see below), whose sum is σ = 162050702. Its totient is φ = 104548800.

The previous prime is 130686019. The next prime is 130686029. The reversal of 130686025 is 520686031.

It can be written as a sum of positive squares in 3 ways, for example, as 3154176 + 127531849 = 1776^2 + 11293^2 .

It is a de Polignac number, because none of the positive numbers 2^k-130686025 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130686029) 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 in 5 ways as a sum of consecutive naturals, for example, 2613696 + ... + 2613745.

Almost surely, 2^130686025 is an apocalyptic number.

It is an amenable number.

130686025 is a deficient number, since it is larger than the sum of its proper divisors (31364677).

130686025 is an equidigital number, since it uses as much as digits as its factorization.

130686025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5227451 (or 5227446 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 130686025 is about 11431.7988523242. The cubic root of 130686025 is about 507.4692322017.

The spelling of 130686025 in words is "one hundred thirty million, six hundred eighty-six thousand, twenty-five".