130688687 has 2 divisors, whose sum is σ = 130688688. Its totient is φ = 130688686.

The previous prime is 130688683. The next prime is 130688713. The reversal of 130688687 is 786886031.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 130688687 - 2² = 130688683 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130688683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65344343 + 65344344.

It is an arithmetic number, because the mean of its divisors is an integer number (65344344).

Almost surely, 2^130688687 is an apocalyptic number.

130688687 is a deficient number, since it is larger than the sum of its proper divisors (1).

130688687 is an equidigital number, since it uses as much as digits as its factorization.

130688687 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 387072, while the sum is 47.

The square root of 130688687 is about 11431.9152813516. The cubic root of 130688687 is about 507.4726777982.

The spelling of 130688687 in words is "one hundred thirty million, six hundred eighty-eight thousand, six hundred eighty-seven".