65130144 has 48 divisors (see below), whose sum is σ = 171460800. Its totient is φ = 21647360.

The previous prime is 65130137. The next prime is 65130173. The reversal of 65130144 is 44103156.

65130144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 42349 + ... + 43859.

It is an arithmetic number, because the mean of its divisors is an integer number (3572100).

Almost surely, 2^65130144 is an apocalyptic number.

It is an amenable number.

65130144 is an abundant number, since it is smaller than the sum of its proper divisors (106330656).

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

65130144 is a wasteful number, since it uses less digits than its factorization.

65130144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1973 (or 1965 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 65130144 is about 8070.3249005229. The cubic root of 65130144 is about 402.3407422619.

The spelling of 65130144 in words is "sixty-five million, one hundred thirty thousand, one hundred forty-four".