65809130 has 8 divisors (see below), whose sum is σ = 118456452. Its totient is φ = 26323648.

The previous prime is 65809129. The next prime is 65809151. The reversal of 65809130 is 3190856.

It can be written as a sum of positive squares in 2 ways, for example, as 65496649 + 312481 = 8093^2 + 559^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3290447 + ... + 3290466.

Almost surely, 2^65809130 is an apocalyptic number.

65809130 is a deficient number, since it is larger than the sum of its proper divisors (52647322).

65809130 is a wasteful number, since it uses less digits than its factorization.

65809130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6580920.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 65809130 is about 8112.2826627282. The cubic root of 65809130 is about 403.7340544588.

Adding to 65809130 its reverse (3190856), we get a palindrome (68999986).

The spelling of 65809130 in words is "sixty-five million, eight hundred nine thousand, one hundred thirty".