130685587 has 2 divisors, whose sum is σ = 130685588. Its totient is φ = 130685586.

The previous prime is 130685561. The next prime is 130685641. The reversal of 130685587 is 785586031.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130685587 is a prime.

It is not a weakly prime, because it can be changed into another prime (130685507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65342793 + 65342794.

It is an arithmetic number, because the mean of its divisors is an integer number (65342794).

Almost surely, 2^130685587 is an apocalyptic number.

130685587 is a deficient number, since it is larger than the sum of its proper divisors (1).

130685587 is an equidigital number, since it uses as much as digits as its factorization.

130685587 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 201600, while the sum is 43.

The square root of 130685587 is about 11431.7796952181. The cubic root of 130685587 is about 507.4686652659.

The spelling of 130685587 in words is "one hundred thirty million, six hundred eighty-five thousand, five hundred eighty-seven".