130609620 has 144 divisors (see below), whose sum is σ = 415134720. Its totient is φ = 33196800.

The previous prime is 130609613. The next prime is 130609631. The reversal of 130609620 is 26906031.

It is a happy number.

130609620 is a `hidden beast` number, since 1 + 30 + 6 + 0 + 9 + 620 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 683725 + ... + 683915.

It is an arithmetic number, because the mean of its divisors is an integer number (2882880).

Almost surely, 2^130609620 is an apocalyptic number.

130609620 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 130609620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (207567360).

130609620 is an abundant number, since it is smaller than the sum of its proper divisors (284525100).

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

130609620 is a wasteful number, since it uses less digits than its factorization.

130609620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366 (or 361 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 130609620 is about 11428.4565887087. The cubic root of 130609620 is about 507.3703163833.

The spelling of 130609620 in words is "one hundred thirty million, six hundred nine thousand, six hundred twenty".