65140928 has 14 divisors (see below), whose sum is σ = 129264156. Its totient is φ = 32570432.

The previous prime is 65140927. The next prime is 65140937. The reversal of 65140928 is 82904156.

65140928 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (65140921) by changing a digit.

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 as a sum of consecutive naturals, namely, 508850 + ... + 508977.

It is an arithmetic number, because the mean of its divisors is an integer number (9233154).

Almost surely, 2^65140928 is an apocalyptic number.

It is an amenable number.

65140928 is a deficient number, since it is larger than the sum of its proper divisors (64123228).

65140928 is a wasteful number, since it uses less digits than its factorization.

65140928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1017839 (or 1017829 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 65140928 is about 8070.9929996253. The cubic root of 65140928 is about 402.3629470499.

The spelling of 65140928 in words is "sixty-five million, one hundred forty thousand, nine hundred twenty-eight".