130609987 has 2 divisors, whose sum is σ = 130609988. Its totient is φ = 130609986.

The previous prime is 130609979. The next prime is 130609993. The reversal of 130609987 is 789906031.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 130609987 - 2³ = 130609979 is a prime.

It is not a weakly prime, because it can be changed into another prime (130609907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65304993 + 65304994.

It is an arithmetic number, because the mean of its divisors is an integer number (65304994).

Almost surely, 2^130609987 is an apocalyptic number.

130609987 is a deficient number, since it is larger than the sum of its proper divisors (1).

130609987 is an equidigital number, since it uses as much as digits as its factorization.

130609987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 130609987 is about 11428.4726451088. The cubic root of 130609987 is about 507.3707916029.

The spelling of 130609987 in words is "one hundred thirty million, six hundred nine thousand, nine hundred eighty-seven".