65144312 has 32 divisors (see below), whose sum is σ = 131577600. Its totient is φ = 30137184.

The previous prime is 65144291. The next prime is 65144329. The reversal of 65144312 is 21344156.

65144312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 1553 + ... + 11519.

It is an arithmetic number, because the mean of its divisors is an integer number (4111800).

Almost surely, 2^65144312 is an apocalyptic number.

It is an amenable number.

65144312 is an abundant number, since it is smaller than the sum of its proper divisors (66433288).

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

65144312 is a wasteful number, since it uses less digits than its factorization.

65144312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10035 (or 10031 counting only the distinct ones).

The product of its digits is 2880, while the sum is 26.

The square root of 65144312 is about 8071.2026365344. The cubic root of 65144312 is about 402.3699143676.

Adding to 65144312 its reverse (21344156), we get a palindrome (86488468).

It can be divided in two parts, 65144 and 312, that added together give a palindrome (65456).

The spelling of 65144312 in words is "sixty-five million, one hundred forty-four thousand, three hundred twelve".