130305015 has 24 divisors (see below), whose sum is σ = 226201248. Its totient is φ = 69391680.

The previous prime is 130305013. The next prime is 130305023. The reversal of 130305015 is 510503031.

It is a happy number.

130305015 is a `hidden beast` number, since 130 + 30 + 501 + 5 = 666.

It is not a de Polignac number, because 130305015 - 2¹ = 130305013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130305013) 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 23 ways as a sum of consecutive naturals, for example, 35182 + ... + 38708.

It is an arithmetic number, because the mean of its divisors is an integer number (9425052).

Almost surely, 2^130305015 is an apocalyptic number.

130305015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

130305015 is a deficient number, since it is larger than the sum of its proper divisors (95896233).

130305015 is a wasteful number, since it uses less digits than its factorization.

130305015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4359 (or 4356 counting only the distinct ones).

The product of its (nonzero) digits is 225, while the sum is 18.

The square root of 130305015 is about 11415.1222069674. The cubic root of 130305015 is about 506.9755832458.

Adding to 130305015 its reverse (510503031), we get a palindrome (640808046).

The spelling of 130305015 in words is "one hundred thirty million, three hundred five thousand, fifteen".