65130709 has 4 divisors (see below), whose sum is σ = 74435104. Its totient is φ = 55826316.

The previous prime is 65130707. The next prime is 65130713. The reversal of 65130709 is 90703156.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 65130709 - 2¹ = 65130707 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65130707) 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, 4652187 + ... + 4652200.

It is an arithmetic number, because the mean of its divisors is an integer number (18608776).

Almost surely, 2^65130709 is an apocalyptic number.

It is an amenable number.

65130709 is a deficient number, since it is larger than the sum of its proper divisors (9304395).

65130709 is an equidigital number, since it uses as much as digits as its factorization.

65130709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9304394.

The product of its (nonzero) digits is 5670, while the sum is 31.

The square root of 65130709 is about 8070.3599052335. The cubic root of 65130709 is about 402.3419056856.

The spelling of 65130709 in words is "sixty-five million, one hundred thirty thousand, seven hundred nine".