130240656 has 160 divisors (see below), whose sum is σ = 460248320. Its totient is φ = 34338816.

The previous prime is 130240633. The next prime is 130240681. The reversal of 130240656 is 656042031.

130240656 is a `hidden beast` number, since 1 + 3 + 0 + 2 + 4 + 0 + 656 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 31 ways as a sum of consecutive naturals, for example, 37656 + ... + 40968.

It is an arithmetic number, because the mean of its divisors is an integer number (2876552).

Almost surely, 2^130240656 is an apocalyptic number.

130240656 is a gapful number since it is divisible by the number (16) 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 130240656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (230124160).

130240656 is an abundant number, since it is smaller than the sum of its proper divisors (330007664).

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

130240656 is a wasteful number, since it uses less digits than its factorization.

130240656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3350 (or 3338 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 130240656 is about 11412.3028350986. The cubic root of 130240656 is about 506.8921026653.

Adding to 130240656 its reverse (656042031), we get a palindrome (786282687).

The spelling of 130240656 in words is "one hundred thirty million, two hundred forty thousand, six hundred fifty-six".