130684987 has 2 divisors, whose sum is σ = 130684988. Its totient is φ = 130684986.

The previous prime is 130684979. The next prime is 130685017. The reversal of 130684987 is 789486031.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 130684987 - 2³ = 130684979 is a prime.

It is not a weakly prime, because it can be changed into another prime (130684927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65342493 + 65342494.

It is an arithmetic number, because the mean of its divisors is an integer number (65342494).

Almost surely, 2^130684987 is an apocalyptic number.

130684987 is a deficient number, since it is larger than the sum of its proper divisors (1).

130684987 is an equidigital number, since it uses as much as digits as its factorization.

130684987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 290304, while the sum is 46.

The square root of 130684987 is about 11431.7534525549. The cubic root of 130684987 is about 507.4678886394.

The spelling of 130684987 in words is "one hundred thirty million, six hundred eighty-four thousand, nine hundred eighty-seven".