130654640 has 80 divisors (see below), whose sum is σ = 327360000. Its totient is φ = 48335616.

The previous prime is 130654607. The next prime is 130654649. The reversal of 130654640 is 46456031.

It is a happy number.

130654640 is digitally balanced in base 3, 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 (80).

It is not an unprimeable number, because it can be changed into a prime (130654649) 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 in 15 ways as a sum of consecutive naturals, for example, 64361 + ... + 66359.

It is an arithmetic number, because the mean of its divisors is an integer number (4092000).

Almost surely, 2^130654640 is an apocalyptic number.

130654640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 130654640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163680000).

130654640 is an abundant number, since it is smaller than the sum of its proper divisors (196705360).

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

130654640 is a wasteful number, since it uses less digits than its factorization.

130654640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2074 (or 2068 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 130654640 is about 11430.4260638001. The cubic root of 130654640 is about 507.4286050650.

The spelling of 130654640 in words is "one hundred thirty million, six hundred fifty-four thousand, six hundred forty".