65140624 has 10 divisors (see below), whose sum is σ = 126209990. Its totient is φ = 32570304.

The previous prime is 65140597. The next prime is 65140627. The reversal of 65140624 is 42604156.

It can be written as a sum of positive squares in only one way, i.e., 64000000 + 1140624 = 8000^2 + 1068^2 .

It is a junction number, because it is equal to n+sod(n) for n = 65140592 and 65140601.

It is not an unprimeable number, because it can be changed into a prime (65140627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2035629 + ... + 2035660.

It is an arithmetic number, because the mean of its divisors is an integer number (12620999).

Almost surely, 2^65140624 is an apocalyptic number.

It is an amenable number.

65140624 is a deficient number, since it is larger than the sum of its proper divisors (61069366).

65140624 is a wasteful number, since it uses less digits than its factorization.

65140624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4071297 (or 4071291 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 65140624 is about 8070.9741667286. The cubic root of 65140624 is about 402.3623211324.

The spelling of 65140624 in words is "sixty-five million, one hundred forty thousand, six hundred twenty-four".