130520115 has 24 divisors (see below), whose sum is σ = 246802608. Its totient is φ = 63282240.

The previous prime is 130520113. The next prime is 130520123. The reversal of 130520115 is 511025031.

130520115 is a `hidden beast` number, since 1 + 30 + 520 + 115 = 666.

It is not a de Polignac number, because 130520115 - 2¹ = 130520113 is a prime.

It is a super-2 number, since 2×130520115² = 34071000839226450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (130520111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 131344 + ... + 132333.

It is an arithmetic number, because the mean of its divisors is an integer number (10283442).

Almost surely, 2^130520115 is an apocalyptic number.

130520115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

130520115 is a deficient number, since it is larger than the sum of its proper divisors (116282493).

130520115 is a wasteful number, since it uses less digits than its factorization.

130520115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263699 (or 263696 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 130520115 is about 11424.5400345047. The cubic root of 130520115 is about 507.2543919015.

Adding to 130520115 its reverse (511025031), we get a palindrome (641545146).

The spelling of 130520115 in words is "one hundred thirty million, five hundred twenty thousand, one hundred fifteen".