130665265 has 4 divisors (see below), whose sum is σ = 156798324. Its totient is φ = 104532208.

The previous prime is 130665263. The next prime is 130665287. The reversal of 130665265 is 562566031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 562566031 = 79 ⋅7121089.

It can be written as a sum of positive squares in 2 ways, for example, as 77316849 + 53348416 = 8793^2 + 7304^2 .

It is a cyclic number.

It is not a de Polignac number, because 130665265 - 2¹ = 130665263 is a prime.

It is a super-2 number, since 2×130665265² = 34146822955040450, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 130665265.

It is not an unprimeable number, because it can be changed into a prime (130665263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13066522 + ... + 13066531.

It is an arithmetic number, because the mean of its divisors is an integer number (39199581).

Almost surely, 2^130665265 is an apocalyptic number.

It is an amenable number.

130665265 is a deficient number, since it is larger than the sum of its proper divisors (26133059).

130665265 is an equidigital number, since it uses as much as digits as its factorization.

130665265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26133058.

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 130665265 is about 11430.8908226787. The cubic root of 130665265 is about 507.4423596034.

The spelling of 130665265 in words is "one hundred thirty million, six hundred sixty-five thousand, two hundred sixty-five".