130555530 has 128 divisors (see below), whose sum is σ = 404213760. Its totient is φ = 29367360.

The previous prime is 130555507. The next prime is 130555531. The reversal of 130555530 is 35555031.

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

It is a junction number, because it is equal to n+sod(n) for n = 130555494 and 130555503.

It is not an unprimeable number, because it can be changed into a prime (130555531) 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 63 ways as a sum of consecutive naturals, for example, 126115 + ... + 127145.

It is an arithmetic number, because the mean of its divisors is an integer number (3157920).

Almost surely, 2^130555530 is an apocalyptic number.

130555530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 130555530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202106880).

130555530 is an abundant number, since it is smaller than the sum of its proper divisors (273658230).

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

130555530 is a wasteful number, since it uses less digits than its factorization.

130555530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1121 (or 1115 counting only the distinct ones).

The product of its (nonzero) digits is 5625, while the sum is 27.

The square root of 130555530 is about 11426.0898823701. The cubic root of 130555530 is about 507.3002667965.

The spelling of 130555530 in words is "one hundred thirty million, five hundred fifty-five thousand, five hundred thirty".