130557065 has 4 divisors (see below), whose sum is σ = 156668484. Its totient is φ = 104445648.

The previous prime is 130557047. The next prime is 130557067. The reversal of 130557065 is 560755031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14714896 + 115842169 = 3836^2 + 10763^2 .

It is a cyclic number.

It is not a de Polignac number, because 130557065 - 2¹⁴ = 130540681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130557067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13055702 + ... + 13055711.

It is an arithmetic number, because the mean of its divisors is an integer number (39167121).

Almost surely, 2^130557065 is an apocalyptic number.

It is an amenable number.

130557065 is a deficient number, since it is larger than the sum of its proper divisors (26111419).

130557065 is an equidigital number, since it uses as much as digits as its factorization.

130557065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26111418.

The product of its (nonzero) digits is 15750, while the sum is 32.

The square root of 130557065 is about 11426.1570530078. The cubic root of 130557065 is about 507.3022549744.

The spelling of 130557065 in words is "one hundred thirty million, five hundred fifty-seven thousand, sixty-five".