130565985 has 16 divisors (see below), whose sum is σ = 227897280. Its totient is φ = 63304640.

The previous prime is 130565983. The next prime is 130565989. The reversal of 130565985 is 589565031.

It is not a de Polignac number, because 130565985 - 2¹ = 130565983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (130565983) 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 15 ways as a sum of consecutive naturals, for example, 395490 + ... + 395819.

It is an arithmetic number, because the mean of its divisors is an integer number (14243580).

Almost surely, 2^130565985 is an apocalyptic number.

130565985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

130565985 is a deficient number, since it is larger than the sum of its proper divisors (97331295).

130565985 is a wasteful number, since it uses less digits than its factorization.

130565985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 791328.

The product of its (nonzero) digits is 162000, while the sum is 42.

The square root of 130565985 is about 11426.5473788017. The cubic root of 130565985 is about 507.3138081168.

The spelling of 130565985 in words is "one hundred thirty million, five hundred sixty-five thousand, nine hundred eighty-five".