130009656 has 32 divisors (see below), whose sum is σ = 371456640. Its totient is φ = 37145568.

The previous prime is 130009651. The next prime is 130009657. The reversal of 130009656 is 656900031.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130009651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 386766 + ... + 387101.

It is an arithmetic number, because the mean of its divisors is an integer number (11608020).

Almost surely, 2^130009656 is an apocalyptic number.

It is an amenable number.

130009656 is an abundant number, since it is smaller than the sum of its proper divisors (241446984).

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

130009656 is a wasteful number, since it uses less digits than its factorization.

130009656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 773883 (or 773879 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 30.

The square root of 130009656 is about 11402.1776867404. The cubic root of 130009656 is about 506.5922439934.

Adding to 130009656 its reverse (656900031), we get a palindrome (786909687).

The spelling of 130009656 in words is "one hundred thirty million, nine thousand, six hundred fifty-six".