65135812 has 12 divisors (see below), whose sum is σ = 130271680. Its totient is φ = 27915336.

The previous prime is 65135803. The next prime is 65135821. The reversal of 65135812 is 21853156.

65135812 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (65135803) and next prime (65135821).

65135812 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1163112 + ... + 1163167.

Almost surely, 2^65135812 is an apocalyptic number.

It is an amenable number.

65135812 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65135812 is a wasteful number, since it uses less digits than its factorization.

65135812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2326290 (or 2326288 counting only the distinct ones).

The product of its digits is 7200, while the sum is 31.

The square root of 65135812 is about 8070.6760559448. The cubic root of 65135812 is about 402.3524132590.

Adding to 65135812 its reverse (21853156), we get a palindrome (86988968).

It can be divided in two parts, 651 and 35812, that added together give a palindrome (36463).

The spelling of 65135812 in words is "sixty-five million, one hundred thirty-five thousand, eight hundred twelve".