65281308 has 48 divisors (see below), whose sum is σ = 156495360. Its totient is φ = 21170304.

The previous prime is 65281289. The next prime is 65281313. The reversal of 65281308 is 80318256.

It is a happy number.

65281308 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 15 ways as a sum of consecutive naturals, for example, 159408 + ... + 159816.

It is an arithmetic number, because the mean of its divisors is an integer number (3260320).

Almost surely, 2^65281308 is an apocalyptic number.

It is an amenable number.

65281308 is an abundant number, since it is smaller than the sum of its proper divisors (91214052).

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

65281308 is a wasteful number, since it uses less digits than its factorization.

65281308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 746 (or 744 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 65281308 is about 8079.6848948458. The cubic root of 65281308 is about 402.6517730677.

The spelling of 65281308 in words is "sixty-five million, two hundred eighty-one thousand, three hundred eight".