65017140 has 48 divisors (see below), whose sum is σ = 186974592. Its totient is φ = 16868736.

The previous prime is 65017133. The next prime is 65017151. The reversal of 65017140 is 4171056.

It is a self number, because there is not a number n which added to its sum of digits gives 65017140.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12424 + ... + 16863.

It is an arithmetic number, because the mean of its divisors is an integer number (3895304).

Almost surely, 2^65017140 is an apocalyptic number.

65017140 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

65017140 is an abundant number, since it is smaller than the sum of its proper divisors (121957452).

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

65017140 is a wasteful number, since it uses less digits than its factorization.

65017140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29336 (or 29334 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 65017140 is about 8063.3206559085. The cubic root of 65017140 is about 402.1079139014.

Adding to 65017140 its reverse (4171056), we get a palindrome (69188196).

The spelling of 65017140 in words is "sixty-five million, seventeen thousand, one hundred forty".