130613550 has 144 divisors (see below), whose sum is σ = 361798272. Its totient is φ = 31116800.

The previous prime is 130613521. The next prime is 130613557. The reversal of 130613550 is 55316031.

It is a self number, because there is not a number n which added to its sum of digits gives 130613550.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130613557) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 996985 + ... + 997115.

It is an arithmetic number, because the mean of its divisors is an integer number (2512488).

Almost surely, 2^130613550 is an apocalyptic number.

130613550 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 130613550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (180899136).

130613550 is an abundant number, since it is smaller than the sum of its proper divisors (231184722).

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

130613550 is a wasteful number, since it uses less digits than its factorization.

130613550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203 (or 181 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 24.

The square root of 130613550 is about 11428.6285266431. The cubic root of 130613550 is about 507.3754052003.

Adding to 130613550 its reverse (55316031), we get a palindrome (185929581).

The spelling of 130613550 in words is "one hundred thirty million, six hundred thirteen thousand, five hundred fifty".