130664565 has 12 divisors (see below), whose sum is σ = 226485324. Its totient is φ = 69687744.

The previous prime is 130664563. The next prime is 130664579. The reversal of 130664565 is 565466031.

130664565 is a `hidden beast` number, since 1 + 3 + 0 + 6 + 645 + 6 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 22982436 + 107682129 = 4794^2 + 10377^2 .

It is not a de Polignac number, because 130664565 - 2¹ = 130664563 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130664561) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1451784 + ... + 1451873.

It is an arithmetic number, because the mean of its divisors is an integer number (18873777).

Almost surely, 2^130664565 is an apocalyptic number.

130664565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

130664565 is a deficient number, since it is larger than the sum of its proper divisors (95820759).

130664565 is a wasteful number, since it uses less digits than its factorization.

130664565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2903668 (or 2903665 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 130664565 is about 11430.8602038517. The cubic root of 130664565 is about 507.4414534450.

The spelling of 130664565 in words is "one hundred thirty million, six hundred sixty-four thousand, five hundred sixty-five".